Shadowing Practice: Kortex: The $3 Million Dollar Mistake - Learn English Speaking with Video
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Vocabulary and speaking notes for this lesson
This speaking lesson is built on the video “Kortex: The $3 Million Dollar Mistake”. This video has 898 sentences and 10307 words to shadow. The speech runs for 54:00. The speaker talks fast, about 191 words per minute, so expect linked and reduced sounds. 86% of the words are among the 3,000 most common in English; the rest is worth studying before you start.
Key vocabulary in this video
15 words from the video worth learning, with pronunciation and meaning:
| Word | Pronunciation | Meaning |
|---|---|---|
| cortex noun | /ˈkɔɹtɛks/ | The outer layer of an internal organ or body structure, such as the kidney or the brain. |
| startup noun | /ˈstɑɹtˌʌp/ | The act or process of starting a process or machine. |
| reel verb | /ˈɹiːl/ | To wind on a reel. |
| canvas noun | /ˈkæn.vəs/ | A type of coarse cloth, woven from hemp (traditionally) or from cotton and polyesters, useful for making sails, tents, and overcoats or as a surface for… |
| rebuild verb | /ɹiːˈbɪld/ | To build again or anew. |
| logo noun | /ˈloʊ.ɡoʊ/ | A visual symbol or emblem that acts as a trademark or a means of identification of a company or organization. |
| desktop noun | /ˈdɛsktɒp/ | The top surface of a desk. |
| stack noun | /stæk/ | A large pile of hay, grain, straw, or the like, larger at the bottom than the top, sometimes covered with thatch. |
| founder noun | /ˈfaʊ̯n.dəː/ | One who founds or establishes (a company, project, organisation, state, etc.). |
| capture verb | /ˈkæp.(t)ʃɚ/ | To take control of; to seize by force or stratagem. |
| connect verb | /kəˈnɛkt/ | To join (to another object): to attach, or to be intended to attach or capable of attaching, to another object. |
| boom verb | /bum/ | To make a loud, hollow, resonant sound. |
| keyboard noun | /ˈki.bɔɹd/ | A set of keys laid out in a gridlike pattern, used for typing on a typewriter, computer, etc. |
| creator noun | /kɹiːˈeɪ̯təː/ | Something or someone which creates or makes something. |
| tier noun | /ˈtɪɚ/ | A row or range, especially one at a higher or lower level than another. |
Phrasal verbs you will hear
| Word | Pronunciation | Meaning |
|---|---|---|
| come out verb | /ˌkʌm ˈaʊt/ | To be discovered; to be revealed. |
| break down verb | To stop functioning. | |
| go through verb | To travel from one end of something to the other. | |
| set up verb | /ˌsɛt ˈʌp/ | To make ready for use. |
| sign up verb | To add a name to the list of people who are participating in something. | |
| come across verb | To change sides; to cross over to work for the opposition. | |
| come back verb | To return to a place. | |
| end up verb | To bring to a conclusion. |
Sentences worth repeating
Short, complete lines from the video that you can reuse in everyday conversation:
- Why don't we just try?
- It's like, what do you mean I'm too young?
- You want me to be a fourth year student?
- Does our time reflect that?
- It's like, okay, well, would I use this?
Grammar in this video
The structures the speaker uses most, with the exact words from the video:
| Structure | In the video |
|---|---|
| Present perfect continuous have/has been + -ing — an action that started earlier and is still going on | have been hearing · we've been doing · they've been looking |
| Conditional sentences if + clause, will/would + verb — a condition and its result | if I hadn't done that, we wouldn't be |
| Present perfect have/has + past participle — a past action that still matters now | haven't tried · haven't seen · You've gotten |
| Passive voice be + past participle — the focus is on what happens, not who does it | can be categorized · were forced · wasn't really fleshed |
Pronunciation to watch
The speaker uses 271 contractions and reduced forms, such as we're, I'm, you're. Say them the short way, as you hear them.
- The “th” sounds: hypothesis /haɪˈpɒθɪsɪs/, breathe /bɹiːð/, authentication /ɔːˌθɛntɪˈkeɪʃn̩/
- The “sh” and “zh” sounds: capture /ˈkæp.(t)ʃɚ/, inspiration /ˌɪn.spɪˈɹeɪ.ʃən/, notion /ˈnoʊʃən/, ownership /ˈoʊnɚʃɪp/, vacation /veɪˈkeɪ.ʃən/
- Long words — get the stress right: ridiculous /ɹɪˈdɪk.jə.ləs/, fundamental /ˌfʌn.dəˈmɛn.təl/, hypothesis /haɪˈpɒθɪsɪs/, necessarily /ˌnɛs.əˈsɛɹ.ə.li/, complicated /ˈkɑm.plɪˌkeɪ.tɪd/
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Start at 0.75× speed, shadow it sentence by sentence, then go back to normal speed once it feels easy.
- Record yourself and compare with the original, paying attention to words like cortex, startup, reel.
What is the Shadowing Technique?
Shadowing is a science-backed language learning technique originally developed for professional interpreter training and popularized by polyglot Dr. Alexander Arguelles. The method is simple but powerful: you listen to native English audio and immediately repeat it out loud — like a shadow following the speaker with just a 1–2 second delay. Unlike passive listening or grammar drills, shadowing forces your brain and mouth muscles to simultaneously process and reproduce real speech patterns. Research shows it significantly improves pronunciation accuracy, intonation, rhythm, connected speech, listening comprehension, and speaking fluency — making it one of the most effective methods for IELTS Speaking preparation and real-world English communication.
































