允許;可以
You can stay with us. 你可以留下來跟我們一起。
You can't smoke in the room. 你不可以在室內(nèi)吸煙。
You can/can't park your car in front of my house.
你(不)可以把車停在我家前面。
Can I talk to you in private? 我可以私下跟你談一談嗎?
推測 (后面常接be)
Can the news be true? 那消息會是真的嗎?
No, it can't be true. 不可能是真的。
May I have some sandwiches? 我可以吃點三明治嗎?
You can't be hungry. You've just had your breakfast.
你不可能餓的,你才剛吃過早餐。
How can he be so cruel to dogs? 他怎么會對狗那么殘忍?