シャドーイング練習: GERUND or INFINITIVE? (What Your Textbook Didn't Teach You...) - 動画で英語スピーキングを学ぶ
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Today's lesson is one that many of you have been waiting for.
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This is how to use gerunds and infinitives in English.
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A gerund is a noun that looks like the ing form of a verb.
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For example, I enjoy reading.
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The verb is enjoy, and reading is the object, the thing that I enjoy.
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An infinitive is to plus the base form of a verb, like I want to read.
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Same thing here.
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To read is the object.
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This action is the thing that I want.
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There are some situations when we can only use a gerund or only an infinitive.
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And I'll show you these patterns later because they're useful.
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But there's one situation where you can find either one.
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after a verb as the direct object.
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And this is the most confusing part for English learners because it's incorrect to say,
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I enjoy to read or I want reading. But why?
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It looks like there's no logic or no pattern, but there is.
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And most textbooks don't explain this.
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The real difference between gerunds and infinitives is not only about grammar, It's about perspective.
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Very abstract, I know.
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But I promise, after you understand this fundamental concept,
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you'll know how to choose the right form naturally, almost every time.
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Not by memorizing a long list of verbs and rules, but by thinking about these forms the way that native speakers do.
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And of course, all the information in this lesson is available for you in a free PDF.
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You can download it by clicking the link in the description below this video.
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A grammatical choice, like using a gerund or an infinitive, is a reflection of how we see or feel about an action.
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English speakers subconsciously view actions from two perspectives,
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real and experienced actions versus potential and intended actions things that have been achieved,
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and things that have not or not yet been achieved.
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So for actions that are real, ongoing in the present, or completed in the past,
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we strongly prefer the gerund form.
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You'll notice that when we talk about our habits, our likes, our preferences, those are things that we have real experience with.
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They exist in our reality.
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On the other hand, we prefer the infinitive for actions that are possible or hypothetical.
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Things that exist in your imagination but haven't happened yet, like your plans, your goals, your desires.
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You may or may not complete them in the future.
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This is the key difference.
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Now, of course, there are always exceptions.
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And this does not explain how every verb in English works.
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That would be impossible.
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But if you really try to understand and internalize this concept,
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you won't need to waste time memorizing a rule for each individual verb.
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Now, let's see how this works in practice.
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Here are some common verbs that require a gerund as the direct object.
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Again, you don't need to memorize them.
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Just notice what they have in common.
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I don't recommend visiting Buffalo in the winter.
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This recommendation is based on my experience.
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This is my hometown.
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He kept running until he reached the finish line.
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Sometimes I really miss being a student and going to school.
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Has Gina finished editing her next video?
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She's practicing speaking more clearly.
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Don't worry, it's completely fine to have two words that end with ing next to each other.
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The first one is just your main verb in the present continuous.
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She is practicing.
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What is she practicing?
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This action, speaking more clearly.
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Now let's look at some examples of verbs that require an infinitive as the direct object.
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With the infinitive there's always this feeling of distance between our intention and reality.
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The action may or may not occur.
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He offered to help me with the project.
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Did he help me with the project?
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We don't know.
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We only know that he offered.
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Maybe I said, no thanks, I don't need any help.
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Or maybe I said yes, but then he changed his mind.
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Maria wanted to watch a movie yesterday.
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This could imply that Maria did not watch a movie.
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I hope to see you soon.
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He promised to call me after work.
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I'm so sorry.
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I didn't mean to hurt your feelings.
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Mean is a very useful conversational verb.
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It's a less formal way to say intend.
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A very common expression is I didn't mean to.
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I didn't mean to.
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That means it was not my intention.
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Now here's where things get really interesting.
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Some verbs can be followed by either a gerund or an infinitive, and both are grammatically correct,
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but the feeling changes a little bit, depending on the context.
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One of the most common examples of this is the verb like.
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I like swimming.
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I like to swim.
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Both sentences are grammatically correct, but they don't sound quite the same.
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I like swimming feels more natural when you're talking about general enjoyment.
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Based on your real experience, you know that you always enjoy this activity.
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I like to swim also works, but in my opinion, it sounds a little incomplete.
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Like I'm waiting for more information, like a reason or a specific condition or choice.
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For example, I like to swim to stay in shape.
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I like to swim when it's hot outside.
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So in most everyday contexts, native speakers naturally use the gerund, I like swimming.
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But if we want to emphasize a particular choice or purpose of the action, we can use the infinitive.
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Now, we always use the infinitive after the phrase would like.
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This describes a specific desire or imagined situation, now or in the future.
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I'd like to swim in the Pacific Ocean one day.
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Remember, the contracted form of I would is I'd, I'd.
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Here, I'm expressing a desire to do something that I've never done before.
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The same thing applies to other similar verbs.
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I would love to travel to Spain.
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I have to work in the office, but if I had a choice, I'd prefer to work from home.
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I hope that I feel better by Saturday.
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I'd hate to miss your party.
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So this is hypothetical.
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If I don't feel better by Saturday, I'll miss your party, and I would hate that.
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Okay, now I'm going to test you to see if you've been paying attention.
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Let's look at some more advanced examples of verbs where the difference is much stronger.
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Read each sentence and fill in the blank with the gerund or the infinitive form.
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Remember to keep the perspective in mind.
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Gerund for things that are real, experienced, or completed in the past.
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And infinitive for things that are possible, not yet completed in the present, or intended for the future.
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Number one, I this game all the time when I was a child.
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Both are grammatically correct, but which one makes sense in this context?
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Remember to play or remember playing?
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The correct answer is remember playing.
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If you remember doing something with a gerund, that means you have a memory of a real action in the past.
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On the other hand, if you remember to do something, that means you keep an idea or an intention in your mind.
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For example, Did you remember to call your mom on her birthday?
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I had the intention, but we still don't know if the action was successfully completed.
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Okay, number two.
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I, her mind, but she's going to quit her job.
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The correct answer is tried to change.
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If you try to do something, that means you make an effort to do something difficult.
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In this context, was I successful?
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Did I change her mind?
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Unfortunately, no. I'll try to finish by 5 p.m., but I don't think it's possible.
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Now, if you try doing something, that's a little different.
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It means you experiment with an action to see if it helps or if it works for you.
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For example, if it's really difficult to fall asleep at night, you can try doing a few different things.
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You can try turning off your phone.
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You can try counting sheep.
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You can try listening to different sounds like rain.
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Let's try one more.
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This one's a little tricky.
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He never about how his actions might affect others.
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The answer depends.
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They're both correct, but they have almost opposite meanings.
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The gerund form, stop doing something, means that you quit an action or something does not continue.
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In this context, he never stops thinking.
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So this is always on his mind.
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By the way, this form is really useful if you're a parent.
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Stop running.
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Stop jumping.
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Stop crying.
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Please stop doing that.
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Now the meaning changes completely with the infinitive form.
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If you stop to do something,
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you pause one action to start another action before you continue the original action again.
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In this context, if he never stops to think, that's a bad thing.
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That means he never pauses for a moment and he never thinks about the effect of his actions before he does things.
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Another example, let's compare he stopped smoking and he stopped to smoke.
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In the first sentence, he stopped smoking, the gerund shows a real action was happening and then ended.
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So this means he quit that habit.
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He doesn't smoke anymore.
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But in the second sentence, he stopped to smoke, the infinitive shows a purpose, a new action he wanted to start.
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This means he paused another activity, like working, for example, so that he could have a cigarette.
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This is going to take lots and lots of practice, I know.
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But once you start to feel the difference, you'll notice that your instinct for which one sounds right will become much stronger.
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Okay, that was the hard part.
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The rest of this lesson should be much easier.
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Obviously, I can't explain all of the ways that we use gerunds and infinitives and all of the exceptions,
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but I can show you the most consistent patterns and structures
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so you can feel more confident when you create your own sentences.
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In English, if the subject of the sentence is an action.
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We use the gerund form like 99% of the time.
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Dancing is my favorite form of exercise.
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The subject can also be a phrase.
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Playing board games is a great way to spend an evening with friends.
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Speaking in public can be stressful for some people.
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Liking this video is the best way to support my content.
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Another great pattern to remember.
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We use a gerund after a preposition.
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I always feel better after meditating.
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Think carefully before making a decision.
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He learned Japanese by watching anime.
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You're really good at cooking.
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This is an important collocation for talking about skills.
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Be good or bad at something, not in.
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If you've ever watched one of my lessons until the end, you'll notice that I always use this pattern when I say,
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thank you so much for watching.
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The cool thing is that this pattern also applies to phrasal verbs
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because the particle of a phrasal verb is usually a preposition.
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We planned to go out, but we ended up staying home.
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I'm looking forward to seeing you next week.
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Be careful here.
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I know it looks incorrect to use two plus ing, but this two here is not an infinitive.
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This phrasal verb is special because it's made of two particles, forward and to.
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It requires both.
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So the same rule applies.
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Preposition plus gerund.
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Look forward to doing something.
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Next, let's talk about the infinitive of purpose.
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We use the infinitive to express why someone does something.
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They went to the library to study.
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Why did she call?
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To ask a question.
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We can use just the infinitive as a short, casual response in speaking.
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You must work hard to get a promotion.
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Or, to get a promotion, you must work hard.
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Keep in mind that in writing, if you move the infinitive phrase to the front for emphasis,
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we need to separate this from the main clause with a comma.
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Finally, it's very common to see an infinitive after a question word, and here the meaning is can or should.
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For example, a more natural way to say, I don't know what I should eat is,
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I don't know what to eat.
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I don't know what to eat.
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Please tell me when to start.
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Do you know how to ride a unicycle?
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A common mistake I see is know to ride.
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This is incorrect.
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When we're talking about skills or things that we learn, we say know how to do something.
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Okay, if you have any questions or if you want to practice writing some example sentences with gerunds and infinitives,
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please leave a comment.
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I'd love to read them.
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If you enjoyed watching this lesson, you know what to do.
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Thank you so much for being here.
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I'm Gina, this is Your World in English, and I'll see you next time.
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Bye!
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この動画で話す練習をする理由
英語の話す力を上げるには、英語シャドーイングが最も効果的な方法の一つです。この動画は、ジェランドと不定詞の使い分けという難しい文法を、ネイティブスピーカーの思考法から説明しているため、単なる文法ルールの暗記ではなく、自然な使い方を身につけるのに最適です。シャドーイング（shadow speak）をすることで、発音やイントネーションだけでなく、文脈での正しい文法の使い方も同時に練習できます。特に、「経験的な行動」と「潜在的な行動」の違いを理解することで、聞くだけでなく話すときの判断力も養えます。
文脈の中の文法と表現
動画では、以下のような重要な構造が使われています。
- ジェランド（～ing形）の使い方：「I enjoy reading」のように、好みや習慣、経験した行動を表す場合に使われます。「enjoy」「recommend」「miss」などの動詞の後に来ることが多く、「現実の行動」を表します。
- 不定詞（to + 動詞原形）の使い方：「I want to read」のように、希望や計画、潜在的な行動を表す場合に使われます。「want」「plan」「hope」などの動詞の後に来て、「まだ起こっていない行動」を表します。
- 文法の選択が表す視点：「real and experienced actions vs potential and intended actions」というネイティブの思考法が説明されています。これを理解することで、ルールを覚えなくても自然に使い分けができるようになります。
発音の注意点
動画の中では、いくつか発音が難しい単語やアクセントがあります。
- gerund：/ˈdʒerənd/ と発音し、「ジェランド」ではなく「ジェランド」（アクセントは最初の音節）に注意します。
- infinitive：/ɪnˈfɪnətɪv/ と発音し、「インフィニティブ」ではなく「インフィニティブ」（アクセントは2番目の音節）です。
- subconsciously：/sʌbˈkɒnʃəsli/ と発音し、「サブコンシャスリー」となりますが、速く話すと「サブコンシャスリー」となるので、リズムを捉えることが重要です。
これらの発音をシャドーイング（shadowspeak）で練習することで、ネイティブに近い発音を身につけることができます。また、シャドーイングサイトを利用して繰り返し練習すると、効果が倍増します。
この動画の文法
話し手がよく使っている文型を、動画の実際の表現とともに紹介します。
| 文型 | 動画での表現 |
|---|---|
| 現在完了進行形 have/has been + -ing — 以前に始まり今も続いている動作 | have been waiting · you've been paying |
| 条件文 if + 節, will/would + 動詞 — 条件とその結果 | if I had a choice, I'd prefer |
| 受動態 be + 過去分詞 — 誰がするかより、何が起きるかに焦点を当てる | have been achieved · been achieved · is based |
| 現在完了形 have/has + 過去分詞 — 過去の出来事が今も関係している | have been achieved · haven't happened · I've never done |
シャドーイングとは？英語上達に効果的な理由
シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。