Question

Can/ could - 1
Exercises: modal verbs

01.- Penguins cancould swim very well.

02.- I couldcan run very fast
when I was younger.

03.- It's snowing,
so we can'tcouldn't go out now.

04.- Yesterday we couldn'tcan't play.

05.- CanCould you play the piano
when you were seven?

06.- You have a nice tricycle.
CanCould you ride it?

07.- He has a broken leg,
so he couldn'tcan't walk for a few days.

08.- I couldn'tcan't sleep last night.

09.- We came as fast as we couldcan.

10.- Why are you crying?
Is there something I canCould do for you?

Answer 1

01- can

02- could

03- can't

04- couldn't

05- could

06- can

07- can't

08- couldn't

09- can

10- can

Explicação: o can/can't você vai usar sempre que estiver falando do presente, e o could/couldn't você usa quando estiver falando do passado. :)