Gilokmnu

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COULD
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Could is a past form of CAN. It also is used with the simple form of the verb.-------------------------------------------------
a. COULD in affirmative or negative or Interrogative form is used to express ability in the past.
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COULDyou speak English when you were a child?
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I COULD speak English very well when I was a child.
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ICOULDN´T speak English very well when I was child.
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b. COULD in the negative often indicates past impossibility.-------------------------------------------------
My brother Al COULDN´T understand the French movie last night.
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I COULDN´T go to the party last Friday.-------------------------------------------------
c. COULD is used after verbs in past time to keep the sequence of tenses.
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ROY says he CAN / CAN´T come tonight.-------------------------------------------------
ROY said he COULD / COULDN´T come tonight.
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Choral repetition A.-------------------------------------------------
1. Could you speak English when you first came here?
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Well I could speak a little, but I couldn’t say very much.-------------------------------------------------
2. Could your mother cook when she got married?
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No, she couldn´t, but she´s a wonderful cook now.-------------------------------------------------
3. I could swim very well when I was younger.
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4. Why couldn´t your cousin register for class this term?...