Conjugação do verbo inglês
COULD FAST

Verbo regular: fast - fasted - fasted

Afirmação

Forma simple	Forma com V-ing
I could fast you could fast he could fast we could fast you could fast they could fast	I could be fasting you could be fasting he could be fasting we could be fasting you could be fasting they could be fasting
Perfeito	Perfeito com V-ing
I could have fasted you could have fasted he could have fasted we could have fasted you could have fasted they could have fasted	I could have been fasting you could have been fasting he could have been fasting we could have been fasting you could have been fasting they could have been fasting

Negação

Forma simple	Forma com V-ing
I could not fast you could not fast he could not fast we could not fast you could not fast they could not fast	I could not be fasting you could not be fasting he could not be fasting we could not be fasting you could not be fasting they could not be fasting
Perfeito	Perfeito com V-ing
I could not have fasted you could not have fasted he could not have fasted we could not have fasted you could not have fasted they could not have fasted	I could not have been fasting you could not have been fasting he could not have been fasting we could not have been fasting you could not have been fasting they could not have been fasting

Forma interrogativa

Forma simple	Forma com V-ing
could I fast? could you fast? could he fast? could we fast? could you fast? could they fast?	could I be fasting? could you be fasting? could he be fasting? could we be fasting? could you be fasting? could they be fasting?
Perfeito	Perfeito com V-ing
could I have fasted? could you have fasted? could he have fasted? could we have fasted? could you have fasted? could they have fasted?	could I have been fasting? could you have been fasting? could he have been fasting? could we have been fasting? could you have been fasting? could they have been fasting?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not fast? could you not fast? could he not fast? could we not fast? could you not fast? could they not fast?	could I not be fasting? could you not be fasting? could he not be fasting? could we not be fasting? could you not be fasting? could they not be fasting?
Perfeito	Perfeito com V-ing
could I not have fasted? could you not have fasted? could he not have fasted? could we not have fasted? could you not have fasted? could they not have fasted?	could I not have been fasting? could you not have been fasting? could he not have been fasting? could we not have been fasting? could you not have been fasting? could they not have been fasting?