Conjugação do verbo inglês COULD STIFF

Verbo regular: stiff - stiffed - stiffed

Afirmação

Forma simple

I could stiff
you could stiff
he could stiff
we could stiff
you could stiff
they could stiff

Forma com V-ing

I could be stiffing
you could be stiffing
he could be stiffing
we could be stiffing
you could be stiffing
they could be stiffing

Perfeito

I could have stiffed
you could have stiffed
he could have stiffed
we could have stiffed
you could have stiffed
they could have stiffed

Perfeito com V-ing

I could have been stiffing
you could have been stiffing
he could have been stiffing
we could have been stiffing
you could have been stiffing
they could have been stiffing

Negação

Forma simple

I could not stiff
you could not stiff
he could not stiff
we could not stiff
you could not stiff
they could not stiff

Forma com V-ing

I could not be stiffing
you could not be stiffing
he could not be stiffing
we could not be stiffing
you could not be stiffing
they could not be stiffing

Perfeito

I could not have stiffed
you could not have stiffed
he could not have stiffed
we could not have stiffed
you could not have stiffed
they could not have stiffed

Perfeito com V-ing

I could not have been stiffing
you could not have been stiffing
he could not have been stiffing
we could not have been stiffing
you could not have been stiffing
they could not have been stiffing

Forma interrogativa

Forma simple

could I stiff?
could you stiff?
could he stiff?
could we stiff?
could you stiff?
could they stiff?

Forma com V-ing

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

Perfeito

could I have stiffed?
could you have stiffed?
could he have stiffed?
could we have stiffed?
could you have stiffed?
could they have stiffed?

Perfeito com V-ing

could I have been stiffing?
could you have been stiffing?
could he have been stiffing?
could we have been stiffing?
could you have been stiffing?
could they have been stiffing?

Forma interro-Negação

Forma simple

could I not stiff?
could you not stiff?
could he not stiff?
could we not stiff?
could you not stiff?
could they not stiff?

Forma com V-ing

could I not be stiffing?
could you not be stiffing?
could he not be stiffing?
could we not be stiffing?
could you not be stiffing?
could they not be stiffing?

Perfeito

could I not have stiffed?
could you not have stiffed?
could he not have stiffed?
could we not have stiffed?
could you not have stiffed?
could they not have stiffed?

Perfeito com V-ing

could I not have been stiffing?
could you not have been stiffing?
could he not have been stiffing?
could we not have been stiffing?
could you not have been stiffing?
could they not have been stiffing?

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