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MODAL VERBS (ABILITY (Could (Translation: Podía, Form: Subject + could +…
MODAL VERBS
ABILITY
Could
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Use: : To express ability in the past. Then, it is the past form of "can".
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Be able to
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Use: be able to can be used in the present, past o future, but it sounds more formal than can/ and couldnt
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Can
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USE: Can is more common when we are talking about abilities in the present, and with verbs such as see, hear, smeel, etc.
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PERMISSION
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May
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Example: "May I play videogames?"
"Yes, you may play computer games"
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OBLIGATION
Have to
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Form: subject + have/has to + verb
- Interrogative: Do/Does + subject + have to + verb...?
- Negative: look at "lack of obligation"
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Must
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Example: you must watch the movie, it is awesome
Use: We use MUST for obligation, need or probability
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Need to
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Form : - Affirmative: Subject + need/needs to + verb
-Interrogative: Do/Does + Subject + need to + verb
- Negative: look at "lack of obligation"
LACK OF OBLIGATION
Needn't
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Form: -Affirmative: Subject + needn't + verb
- Past form: Subject + needn't + have + past participle
Example: "you needn't have washed the dishes"
(No tienes por qué fregar los platos, si lo haces, es tu decisión)
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PROHIBITION
Can't
Form: subject + can,t + verb
Example: I can,t play the guitar
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Use: to say something something is possible or impossible, to express ability ...
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CERTAINTY (DEDUCTION)
Must
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Use: We use this modal verb to indicate that we are sure about a present situation. It's a present deduction
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Example: Juan is historian, he must know a lot of things about Persia.
Can't
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Example: "She can't be German, she speaks Spanish perfectly"
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