Conjugação do verbo inglês COULD UNBUTTON

Verbo regular: unbutton - unbuttoned - unbuttoned

Afirmação

Forma simple

I could unbutton
you could unbutton
she could unbutton
we could unbutton
you could unbutton
they could unbutton

Forma com V-ing

I could be unbuttoning
you could be unbuttoning
she could be unbuttoning
we could be unbuttoning
you could be unbuttoning
they could be unbuttoning

Perfeito

I could have unbuttoned
you could have unbuttoned
she could have unbuttoned
we could have unbuttoned
you could have unbuttoned
they could have unbuttoned

Perfeito com V-ing

I could have been unbuttoning
you could have been unbuttoning
she could have been unbuttoning
we could have been unbuttoning
you could have been unbuttoning
they could have been unbuttoning

Negação

Forma simple

I could not unbutton
you could not unbutton
she could not unbutton
we could not unbutton
you could not unbutton
they could not unbutton

Forma com V-ing

I could not be unbuttoning
you could not be unbuttoning
she could not be unbuttoning
we could not be unbuttoning
you could not be unbuttoning
they could not be unbuttoning

Perfeito

I could not have unbuttoned
you could not have unbuttoned
she could not have unbuttoned
we could not have unbuttoned
you could not have unbuttoned
they could not have unbuttoned

Perfeito com V-ing

I could not have been unbuttoning
you could not have been unbuttoning
she could not have been unbuttoning
we could not have been unbuttoning
you could not have been unbuttoning
they could not have been unbuttoning

Forma interrogativa

Forma simple

could I unbutton?
could you unbutton?
could she unbutton?
could we unbutton?
could you unbutton?
could they unbutton?

Forma com V-ing

could I be unbuttoning?
could you be unbuttoning?
could she be unbuttoning?
could we be unbuttoning?
could you be unbuttoning?
could they be unbuttoning?

Perfeito

could I have unbuttoned?
could you have unbuttoned?
could she have unbuttoned?
could we have unbuttoned?
could you have unbuttoned?
could they have unbuttoned?

Perfeito com V-ing

could I have been unbuttoning?
could you have been unbuttoning?
could she have been unbuttoning?
could we have been unbuttoning?
could you have been unbuttoning?
could they have been unbuttoning?

Forma interro-Negação

Forma simple

could I not unbutton?
could you not unbutton?
could she not unbutton?
could we not unbutton?
could you not unbutton?
could they not unbutton?

Forma com V-ing

could I not be unbuttoning?
could you not be unbuttoning?
could she not be unbuttoning?
could we not be unbuttoning?
could you not be unbuttoning?
could they not be unbuttoning?

Perfeito

could I not have unbuttoned?
could you not have unbuttoned?
could she not have unbuttoned?
could we not have unbuttoned?
could you not have unbuttoned?
could they not have unbuttoned?

Perfeito com V-ing

could I not have been unbuttoning?
could you not have been unbuttoning?
could she not have been unbuttoning?
could we not have been unbuttoning?
could you not have been unbuttoning?
could they not have been unbuttoning?

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