Conjugação do verbo inglês COULD EXIST

Verbo regular: exist - existed - existed

Afirmação

Forma simple

I could exist
you could exist
he could exist
we could exist
you could exist
they could exist

Forma com V-ing

I could be existing
you could be existing
he could be existing
we could be existing
you could be existing
they could be existing

Perfeito

I could have existed
you could have existed
he could have existed
we could have existed
you could have existed
they could have existed

Perfeito com V-ing

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

Negação

Forma simple

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

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interrogativa

Forma simple

could I exist?
could you exist?
could he exist?
could we exist?
could you exist?
could they exist?

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interro-Negação

Forma simple

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

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

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