Conjugação do verbo inglês
COULD SUBSERVE

Verbo regular: subserve - subserved - subserved

Afirmação

Forma simple	Forma com V-ing
I could subserve you could subserve he could subserve we could subserve you could subserve they could subserve	I could be subserving you could be subserving he could be subserving we could be subserving you could be subserving they could be subserving
Perfeito	Perfeito com V-ing
I could have subserved you could have subserved he could have subserved we could have subserved you could have subserved they could have subserved	I could have been subserving you could have been subserving he could have been subserving we could have been subserving you could have been subserving they could have been subserving

Negação

Forma simple	Forma com V-ing
I couldn't subserve you couldn't subserve he couldn't subserve we couldn't subserve you couldn't subserve they couldn't subserve	I couldn't be subserving you couldn't be subserving he couldn't be subserving we couldn't be subserving you couldn't be subserving they couldn't be subserving
Perfeito	Perfeito com V-ing
I couldn't have subserved you couldn't have subserved he couldn't have subserved we couldn't have subserved you couldn't have subserved they couldn't have subserved	I couldn't have been subserving you couldn't have been subserving he couldn't have been subserving we couldn't have been subserving you couldn't have been subserving they couldn't have been subserving

Forma interrogativa

Forma simple	Forma com V-ing
could I subserve? could you subserve? could he subserve? could we subserve? could you subserve? could they subserve?	could I be subserving? could you be subserving? could he be subserving? could we be subserving? could you be subserving? could they be subserving?
Perfeito	Perfeito com V-ing
could I have subserved? could you have subserved? could he have subserved? could we have subserved? could you have subserved? could they have subserved?	could I have been subserving? could you have been subserving? could he have been subserving? could we have been subserving? could you have been subserving? could they have been subserving?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I subserve? couldn't you subserve? couldn't he subserve? couldn't we subserve? couldn't you subserve? couldn't they subserve?	couldn't I be subserving? couldn't you be subserving? couldn't he be subserving? couldn't we be subserving? couldn't you be subserving? couldn't they be subserving?
Perfeito	Perfeito com V-ing
couldn't I have subserved? couldn't you have subserved? couldn't he have subserved? couldn't we have subserved? couldn't you have subserved? couldn't they have subserved?	couldn't I have been subserving? couldn't you have been subserving? couldn't he have been subserving? couldn't we have been subserving? couldn't you have been subserving? couldn't they have been subserving?