Conjugação do verbo inglês
COULD SWIM

Verbo irregular: swim - swam - swum

Afirmação

Forma simple	Forma com V-ing
I could swim you could swim she could swim we could swim you could swim they could swim	I could be swimming you could be swimming she could be swimming we could be swimming you could be swimming they could be swimming
Perfeito	Perfeito com V-ing
I could have swum you could have swum she could have swum we could have swum you could have swum they could have swum	I could have been swimming you could have been swimming she could have been swimming we could have been swimming you could have been swimming they could have been swimming

Negação

Forma simple	Forma com V-ing
I couldn't swim you couldn't swim she couldn't swim we couldn't swim you couldn't swim they couldn't swim	I couldn't be swimming you couldn't be swimming she couldn't be swimming we couldn't be swimming you couldn't be swimming they couldn't be swimming
Perfeito	Perfeito com V-ing
I couldn't have swum you couldn't have swum she couldn't have swum we couldn't have swum you couldn't have swum they couldn't have swum	I couldn't have been swimming you couldn't have been swimming she couldn't have been swimming we couldn't have been swimming you couldn't have been swimming they couldn't have been swimming

Forma interrogativa

Forma simple	Forma com V-ing
could I swim? could you swim? could she swim? could we swim? could you swim? could they swim?	could I be swimming? could you be swimming? could she be swimming? could we be swimming? could you be swimming? could they be swimming?
Perfeito	Perfeito com V-ing
could I have swum? could you have swum? could she have swum? could we have swum? could you have swum? could they have swum?	could I have been swimming? could you have been swimming? could she have been swimming? could we have been swimming? could you have been swimming? could they have been swimming?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I swim? couldn't you swim? couldn't she swim? couldn't we swim? couldn't you swim? couldn't they swim?	couldn't I be swimming? couldn't you be swimming? couldn't she be swimming? couldn't we be swimming? couldn't you be swimming? couldn't they be swimming?
Perfeito	Perfeito com V-ing
couldn't I have swum? couldn't you have swum? couldn't she have swum? couldn't we have swum? couldn't you have swum? couldn't they have swum?	couldn't I have been swimming? couldn't you have been swimming? couldn't she have been swimming? couldn't we have been swimming? couldn't you have been swimming? couldn't they have been swimming?