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МатематикаВопрос:
Can and could for ability and permission
Ответ:
Can and could for ability and permission
Can and could are modal verbs. We use them to talk about possibility, ability and permission. We use can and can't to talk about our present abilities.
| Subject | can/can't | Base form |
| I/he/she/it/we/you/they | can | swim 1000 metres. |
| can't | dance. |
| Can | Subject | Base form |
| Can | I/we/she/it/we/you/they | swim 1000 metres? |
| dance? |
We use could and couldn't to talk about our abilities in the past. We often use a past time phrase.
| Subject | could/couldn't | Base form | Past time phrase |
| I/he/she/it/we/you/they | could | swim | when I was eight. when she was three. this morning. yesterday. in 2006. |
| couldn't |
We often use can and could for ability to talk about our senses.
I can smell smoke. I can't taste it.
Can you hear me? I couldn't see it.
