Conjugación del verbo inglés COULD SUSTAIN

Verbo regular: sustain - sustained - sustained

Afirmación

Forma simple

I could sustain
you could sustain
she could sustain
we could sustain
you could sustain
they could sustain

Forma con V-ing

I could be sustaining
you could be sustaining
she could be sustaining
we could be sustaining
you could be sustaining
they could be sustaining

Perfecto

I could have sustained
you could have sustained
she could have sustained
we could have sustained
you could have sustained
they could have sustained

Perfecto con V-ing

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

Negación

Forma simple

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

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

I couldn't have been sustaining
you couldn't have been sustaining
she 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 she sustain?
could we sustain?
could you sustain?
could they sustain?

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

Forma interro-negativa

Forma simple

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

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

couldn't I have been sustaining?
couldn't you have been sustaining?
couldn't she 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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