Conjugação do verbo inglês COULD UNBUTTON

Verbo regular: unbutton - unbuttoned - unbuttoned

Afirmação

Forma simple

I could unbutton
you could unbutton
he could unbutton
we could unbutton
you could unbutton
they could unbutton

Forma com V-ing

I could be unbuttoning
you could be unbuttoning
he could be unbuttoning
we could be unbuttoning
you could be unbuttoning
they could be unbuttoning

Perfeito

I could have unbuttoned
you could have unbuttoned
he 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
he could have been unbuttoning
we could have been unbuttoning
you could have been unbuttoning
they could have been unbuttoning

Negação

Forma simple

I couldn't unbutton
you couldn't unbutton
he couldn't unbutton
we couldn't unbutton
you couldn't unbutton
they couldn't unbutton

Forma com V-ing

I couldn't be unbuttoning
you couldn't be unbuttoning
he couldn't be unbuttoning
we couldn't be unbuttoning
you couldn't be unbuttoning
they couldn't be unbuttoning

Perfeito

I couldn't have unbuttoned
you couldn't have unbuttoned
he couldn't have unbuttoned
we couldn't have unbuttoned
you couldn't have unbuttoned
they couldn't have unbuttoned

Perfeito com V-ing

I couldn't have been unbuttoning
you couldn't have been unbuttoning
he couldn't have been unbuttoning
we couldn't have been unbuttoning
you couldn't have been unbuttoning
they couldn't have been unbuttoning

Forma interrogativa

Forma simple

could I unbutton?
could you unbutton?
could he unbutton?
could we unbutton?
could you unbutton?
could they unbutton?

Forma com V-ing

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

Perfeito

could I have unbuttoned?
could you have unbuttoned?
could he 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 he have been unbuttoning?
could we have been unbuttoning?
could you have been unbuttoning?
could they have been unbuttoning?

Forma interro-Negação

Forma simple

couldn't I unbutton?
couldn't you unbutton?
couldn't he unbutton?
couldn't we unbutton?
couldn't you unbutton?
couldn't they unbutton?

Forma com V-ing

couldn't I be unbuttoning?
couldn't you be unbuttoning?
couldn't he be unbuttoning?
couldn't we be unbuttoning?
couldn't you be unbuttoning?
couldn't they be unbuttoning?

Perfeito

couldn't I have unbuttoned?
couldn't you have unbuttoned?
couldn't he have unbuttoned?
couldn't we have unbuttoned?
couldn't you have unbuttoned?
couldn't they have unbuttoned?

Perfeito com V-ing

couldn't I have been unbuttoning?
couldn't you have been unbuttoning?
couldn't he have been unbuttoning?
couldn't we have been unbuttoning?
couldn't you have been unbuttoning?
couldn't they have been unbuttoning?

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