Bonjour
CAN = exprime la capacité /CAN't l'incapacité au présent
idem pour COULD et COULDN'T au prétérit
Ils sont tous 2 suivis de la Base Verbale
1. Could you swim when you were 10?
2. We couldn't get to the meeting on time yesterday because the train was delayed by one hour.
3. He's amazing, he can speak 5 languages including Chinese.
4. I couldn't drive a car until I was 34, then I moved to the countryside so I had to learn.
5. I looked everywhere for my glasses but I couldn't find them anywhere.
6. She's 7 years old but she can't read yet her parents are getting her extra lessons.
7. He read the book three times but he couldn't understand it.
(ici read est au préérit = to read/read/read. S'il avait été au présent on aurait ajouté le "s" de la 2e p. singulier = he reads)
8. James could speak Japanese when he lived in Japan, but he's forgotten most of it now.
9. I can't lift this box - it's too heavy! Could / Can you help me?
could est une demande polie = pourriez-vous m'aider...
10. John can play tennis really well. He's champion of his club.
11. Unfortunately, I really can't sing at all! No-one in my family is musical either.
12- I can't open this window. I think it's stuck !