can

verb

I can swim.

意味（1）

(auxiliary verb, defective) To know how to; to be able to.

She can speak English, French, and German.

意味（2）

(modal auxiliary verb, defective, informal) May; to be permitted or enabled to.

You can go outside and play when you're finished with your homework.

意味（3）

(modal auxiliary verb, defective) To have the potential to; be possible.

Can it be Friday already?

意味（4）

(auxiliary verb, defective) Used with verbs of perception.

Can you hear that?.

意味（5）

(obsolete, transitive) To know.

I can rimes of Robin Hood.