Modal Verb: CAN
CAN + V1 without to
1. Physical state(ability)
+I can run
-I can't run
? Can I run?
2. Mental ability
+ He can speak English.
- He can't speak English
? Can he speak English?
COULD(мог) PAST
Could +V1 without to
+They could meet.
-They couldn't meet.
? Could they meet?
TO BE ABLE TO+V1
PRESENT :CAN= AM/IS/ARE ABLE TO +V1
PAST: COULD=WAS/WERE ABLE TO +V1
FUTURE= WILL BE/SHALL BE ABLE TO +V1
Could you do me a favour?
2) Surprise (удивление)
Can it be five o'clock? (неужели)
Can he still be sleeping? (неужели она все ещё спит?)
3) В отрицательных предложениях CAN может выражать недоверие (не может, чтобы..)
It can't be 5 o'clock already.
He can't be still sleeping.
REMEMBER!
1. HE COULD HELP LAUGHING (Не мог удержаться, чтобы не...)
2. I CAN'T BYT ASK HIM ABOUT IT (Мне ничего не остаётся как...)
3) IT CAN'T BE POSSIBLY TRUE (Не может быть, чтобы это было правдой.
CAN( БАЗА 2000)
621. The fire spread through the building quickly but everybody was able to escape.
624. Everybody can be a teacher if he knows the subject.
629. He can speak English.
635. He has lived in England for some time but he can't speak English.
637. He could read at the age of four.
638. I can't run very fast now but when I was at school I could run faster than anyone else.
650. He was able to overcome all the difficulties. = COULD
671. One day everybody will be able to say what they like.
672. When I was younger, I could sing well.
674. He can't have got home yet.
676. You will be able to speak Spanish in few months.
660. You could get a better job, if you spoke a foreign language.
661. If I practiced a bit, I could be pretty good at tennis.
662. In a few years, computers will be able to think better than we do.