can
Geeft aan dat iets (niet) KAN
I can walk.
He can play the piano.
We can jump really high.
She can't be serious!
They cannot speak French.
(can't of cannot kan allebei)
Can you speak English?
could
Geeft aan dat iets ZOU KUNNEN
I could be on time.
That could be true.
We could try that.
Beleefde vragen
Could you help me, please?