Conjugação do verbo inglês
COULD SWIM

Verbo irregular: swim - swam - swum

Afirmação

Forma simple	Forma com V-ing
I could swim you could swim he could swim we could swim you could swim they could swim	I could be swimming you could be swimming he 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 he 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 he 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 could not swim you could not swim he could not swim we could not swim you could not swim they could not swim	I could not be swimming you could not be swimming he could not be swimming we could not be swimming you could not be swimming they could not be swimming
Perfeito	Perfeito com V-ing
I could not have swum you could not have swum he could not have swum we could not have swum you could not have swum they could not have swum	I could not have been swimming you could not have been swimming he could not have been swimming we could not have been swimming you could not have been swimming they could not have been swimming

Forma interrogativa

Forma simple	Forma com V-ing
could I swim? could you swim? could he swim? could we swim? could you swim? could they swim?	could I be swimming? could you be swimming? could he 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 he 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 he 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
could I not swim? could you not swim? could he not swim? could we not swim? could you not swim? could they not swim?	could I not be swimming? could you not be swimming? could he not be swimming? could we not be swimming? could you not be swimming? could they not be swimming?
Perfeito	Perfeito com V-ing
could I not have swum? could you not have swum? could he not have swum? could we not have swum? could you not have swum? could they not have swum?	could I not have been swimming? could you not have been swimming? could he not have been swimming? could we not have been swimming? could you not have been swimming? could they not have been swimming?