The vowel-shift irregular verb

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The vowel-shift irregular verb발음듣기

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[Voiceover] Hello grammarians! We're talking about vowel shifting in irregular verbs, which is gonna sound a little weird, but bear with me.발음듣기

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To review what a vowel is super quick, a vowel is any sound that your mouth can make while your tongue isn't touching your lips or your teeth or the roof of your mouth, basically.발음듣기

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In English we render vowels in the following way, a, e, i, o, u, and sometimes y, or as it is commonly pronounced, 'aeiouy'.발음듣기

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That part's not true, but here is what's true is that you produce vowels from different parts of your mouth.발음듣기

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You can produce a vowel in the front of your mouth, you can produce it in the center of your mouth, you can produce it all the way back in your throat.발음듣기

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What does this have to do with irregular verbs?발음듣기

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I'm so glad you asked. Let's draw a chart.발음듣기

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So I'm gonna put three things on this chart, the present, the past, and the past perfect, which is when you're talking about something in the past that is completed, and we form that in English by combining that verb with have, so have walked, have said, have done.발음듣기

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Now in most cases with most regular verbs, the past perfect and the past form are the same, the same thing, but in some very rare cases, and that's why we're talking about these, they're different.발음듣기

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Let's begin with the first one.발음듣기

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In the present tense, we say "I sing."발음듣기

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In the past tense, we would say "she sang," and in the past perfect, you would say they have sung."발음듣기

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So it's weird, right?발음듣기

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Because the vowel changes this vowel sound, ih, ah, uh, actually bounces along your mouth.발음듣기

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It goes from front, to middle, to back as you go further and further back in time, which I think is really cool. Ih, uh, ah.발음듣기

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Same thing with the word drink.발음듣기

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In the present tense, it's I drink, in the past tense, it's I drank, and in the past perfect, it's I had drunk.발음듣기

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There are other verbs that follow this formula, too, like ring, rang, rung for ringing a bell, but for the rest of this, we're just gonna talk about verbs where the past and the past perfect are the same, and there's still a vowel shift going on between the present and the past.발음듣기

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So if you take a word like win, the present tense is win, the past tense is won, and the past perfect is also won.발음듣기

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We had won the game. We won the game.발음듣기

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So that vowel shift goes from ih, to uh.발음듣기

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The verb to find.발음듣기

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So in the present tense it's find and in the past and past perfect it's found.발음듣기

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It goes from i-ee to ow.발음듣기

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Sit becomes sat, sneak becomes snuck, and run becomes ran, and run is a weird one because the past perfect form of run is run.발음듣기

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He had run, not he had ran.발음듣기

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Those are some of the front to back sound shifts it, at, uh, or it, uh, or ite, ow, that you will encounter when you're learning irregular verbs in English.발음듣기

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You can learn anything, David out.발음듣기

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