Conjugação do verbo inglês
COULD PRODUCE

Verbo regular: produce - produced - produced

Afirmação

Forma simple	Forma com V-ing
I could produce you could produce he could produce we could produce you could produce they could produce	I could be producing you could be producing he could be producing we could be producing you could be producing they could be producing
Perfeito	Perfeito com V-ing
I could have produced you could have produced he could have produced we could have produced you could have produced they could have produced	I could have been producing you could have been producing he could have been producing we could have been producing you could have been producing they could have been producing

Negação

Forma simple	Forma com V-ing
I couldn't produce you couldn't produce he couldn't produce we couldn't produce you couldn't produce they couldn't produce	I couldn't be producing you couldn't be producing he couldn't be producing we couldn't be producing you couldn't be producing they couldn't be producing
Perfeito	Perfeito com V-ing
I couldn't have produced you couldn't have produced he couldn't have produced we couldn't have produced you couldn't have produced they couldn't have produced	I couldn't have been producing you couldn't have been producing he couldn't have been producing we couldn't have been producing you couldn't have been producing they couldn't have been producing

Forma interrogativa

Forma simple	Forma com V-ing
could I produce? could you produce? could he produce? could we produce? could you produce? could they produce?	could I be producing? could you be producing? could he be producing? could we be producing? could you be producing? could they be producing?
Perfeito	Perfeito com V-ing
could I have produced? could you have produced? could he have produced? could we have produced? could you have produced? could they have produced?	could I have been producing? could you have been producing? could he have been producing? could we have been producing? could you have been producing? could they have been producing?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I produce? couldn't you produce? couldn't he produce? couldn't we produce? couldn't you produce? couldn't they produce?	couldn't I be producing? couldn't you be producing? couldn't he be producing? couldn't we be producing? couldn't you be producing? couldn't they be producing?
Perfeito	Perfeito com V-ing
couldn't I have produced? couldn't you have produced? couldn't he have produced? couldn't we have produced? couldn't you have produced? couldn't they have produced?	couldn't I have been producing? couldn't you have been producing? couldn't he have been producing? couldn't we have been producing? couldn't you have been producing? couldn't they have been producing?