Conjugação do verbo inglês COULD SUSTAIN

Verbo regular: sustain - sustained - sustained

Afirmação

Forma simple

I could sustain
you could sustain
he could sustain
we could sustain
you could sustain
they could sustain

Forma com V-ing

I could be sustaining
you could be sustaining
he could be sustaining
we could be sustaining
you could be sustaining
they could be sustaining

Perfeito

I could have sustained
you could have sustained
he could have sustained
we could have sustained
you could have sustained
they could have sustained

Perfeito com V-ing

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

Negação

Forma simple

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

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interrogativa

Forma simple

could I sustain?
could you sustain?
could he sustain?
could we sustain?
could you sustain?
could they sustain?

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interro-Negação

Forma simple

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

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

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