Conjugação do verbo inglês
COULD TUG

Verbo regular: tug - tugged - tugged

Afirmação

Forma simple	Forma com V-ing
I could tug you could tug he could tug we could tug you could tug they could tug	I could be tugging you could be tugging he could be tugging we could be tugging you could be tugging they could be tugging
Perfeito	Perfeito com V-ing
I could have tugged you could have tugged he could have tugged we could have tugged you could have tugged they could have tugged	I could have been tugging you could have been tugging he could have been tugging we could have been tugging you could have been tugging they could have been tugging

Negação

Forma simple	Forma com V-ing
I could not tug you could not tug he could not tug we could not tug you could not tug they could not tug	I could not be tugging you could not be tugging he could not be tugging we could not be tugging you could not be tugging they could not be tugging
Perfeito	Perfeito com V-ing
I could not have tugged you could not have tugged he could not have tugged we could not have tugged you could not have tugged they could not have tugged	I could not have been tugging you could not have been tugging he could not have been tugging we could not have been tugging you could not have been tugging they could not have been tugging

Forma interrogativa

Forma simple	Forma com V-ing
could I tug? could you tug? could he tug? could we tug? could you tug? could they tug?	could I be tugging? could you be tugging? could he be tugging? could we be tugging? could you be tugging? could they be tugging?
Perfeito	Perfeito com V-ing
could I have tugged? could you have tugged? could he have tugged? could we have tugged? could you have tugged? could they have tugged?	could I have been tugging? could you have been tugging? could he have been tugging? could we have been tugging? could you have been tugging? could they have been tugging?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not tug? could you not tug? could he not tug? could we not tug? could you not tug? could they not tug?	could I not be tugging? could you not be tugging? could he not be tugging? could we not be tugging? could you not be tugging? could they not be tugging?
Perfeito	Perfeito com V-ing
could I not have tugged? could you not have tugged? could he not have tugged? could we not have tugged? could you not have tugged? could they not have tugged?	could I not have been tugging? could you not have been tugging? could he not have been tugging? could we not have been tugging? could you not have been tugging? could they not have been tugging?