Question

Complete the sentences using can, could, can't, or couldn't.
a) ___ you help me with my homework?
b) I'm sorry but I ____ talk right now.
c) He is an excellent athlete. He ____ break the record.
d) We ____ see that he was very happy.
e) Picasso ____ paint when he was five. He started painting when he was seven.
f) I ___ swin well years ago.

Answer 1

Hey!:)

a)Can
b)Can't
c)Could
d)Couldn't
e)Could
f)Could
..... Explicação
Can e Can't é o Posso e o Não Posso no presente. Tipo:

-Pode me ajudar?

-Can you help me?

Could e Couldn't é o Poderia ou Podia e Não Poderia ou Não Podia no passado. Tipo:

- Eu não pude ajuda-lo. Ele estava no Brasil e eu no Estados Unidos.

- I couldn't help him. He was on Brazil and I was in USA.
.... Mascete

A dica é: Vê primeiro se tem Was ou se a frase está no passado. Se tiver já sabe que é pra usar Could e Couldn't ;)