Conjugação do verbo inglês COULD UNDERSIGN

Verbo regular: undersign - undersigned - undersigned

Afirmação

Forma simple

I could undersign
you could undersign
he could undersign
we could undersign
you could undersign
they could undersign

Forma com V-ing

I could be undersigning
you could be undersigning
he could be undersigning
we could be undersigning
you could be undersigning
they could be undersigning

Perfeito

I could have undersigned
you could have undersigned
he could have undersigned
we could have undersigned
you could have undersigned
they could have undersigned

Perfeito com V-ing

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

Negação

Forma simple

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

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interrogativa

Forma simple

could I undersign?
could you undersign?
could he undersign?
could we undersign?
could you undersign?
could they undersign?

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

Forma interro-Negação

Forma simple

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

Forma com V-ing

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

Perfeito

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

Perfeito com V-ing

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

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