Conjugação do verbo inglês
COULD SIP

Verbo regular: sip - sipped - sipped

Afirmação

Forma simple	Forma com V-ing
I could sip you could sip he could sip we could sip you could sip they could sip	I could be sipping you could be sipping he could be sipping we could be sipping you could be sipping they could be sipping
Perfeito	Perfeito com V-ing
I could have sipped you could have sipped he could have sipped we could have sipped you could have sipped they could have sipped	I could have been sipping you could have been sipping he could have been sipping we could have been sipping you could have been sipping they could have been sipping

Negação

Forma simple	Forma com V-ing
I could not sip you could not sip he could not sip we could not sip you could not sip they could not sip	I could not be sipping you could not be sipping he could not be sipping we could not be sipping you could not be sipping they could not be sipping
Perfeito	Perfeito com V-ing
I could not have sipped you could not have sipped he could not have sipped we could not have sipped you could not have sipped they could not have sipped	I could not have been sipping you could not have been sipping he could not have been sipping we could not have been sipping you could not have been sipping they could not have been sipping

Forma interrogativa

Forma simple	Forma com V-ing
could I sip? could you sip? could he sip? could we sip? could you sip? could they sip?	could I be sipping? could you be sipping? could he be sipping? could we be sipping? could you be sipping? could they be sipping?
Perfeito	Perfeito com V-ing
could I have sipped? could you have sipped? could he have sipped? could we have sipped? could you have sipped? could they have sipped?	could I have been sipping? could you have been sipping? could he have been sipping? could we have been sipping? could you have been sipping? could they have been sipping?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not sip? could you not sip? could he not sip? could we not sip? could you not sip? could they not sip?	could I not be sipping? could you not be sipping? could he not be sipping? could we not be sipping? could you not be sipping? could they not be sipping?
Perfeito	Perfeito com V-ing
could I not have sipped? could you not have sipped? could he not have sipped? could we not have sipped? could you not have sipped? could they not have sipped?	could I not have been sipping? could you not have been sipping? could he not have been sipping? could we not have been sipping? could you not have been sipping? could they not have been sipping?