Conjugación del verbo inglés COULD FASTEN

Verbo regular: fasten - fastened - fastened

Afirmación

Forma simple

I could fasten
you could fasten
she could fasten
we could fasten
you could fasten
they could fasten

Forma con V-ing

I could be fastening
you could be fastening
she could be fastening
we could be fastening
you could be fastening
they could be fastening

Perfecto

I could have fastened
you could have fastened
she could have fastened
we could have fastened
you could have fastened
they could have fastened

Perfecto con V-ing

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

Negación

Forma simple

I could not fasten
you could not fasten
she could not fasten
we could not fasten
you could not fasten
they could not fasten

Forma con V-ing

I could not be fastening
you could not be fastening
she could not be fastening
we could not be fastening
you could not be fastening
they could not be fastening

Perfecto

I could not have fastened
you could not have fastened
she could not have fastened
we could not have fastened
you could not have fastened
they could not have fastened

Perfecto con V-ing

I could not have been fastening
you could not have been fastening
she could not have been fastening
we could not have been fastening
you could not have been fastening
they could not have been fastening

Forma interrogativa

Forma simple

could I fasten?
could you fasten?
could she fasten?
could we fasten?
could you fasten?
could they fasten?

Forma con V-ing

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

Perfecto

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

Perfecto con V-ing

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

Forma interro-negativa

Forma simple

could I not fasten?
could you not fasten?
could she not fasten?
could we not fasten?
could you not fasten?
could they not fasten?

Forma con V-ing

could I not be fastening?
could you not be fastening?
could she not be fastening?
could we not be fastening?
could you not be fastening?
could they not be fastening?

Perfecto

could I not have fastened?
could you not have fastened?
could she not have fastened?
could we not have fastened?
could you not have fastened?
could they not have fastened?

Perfecto con V-ing

could I not have been fastening?
could you not have been fastening?
could she not have been fastening?
could we not have been fastening?
could you not have been fastening?
could they not have been fastening?

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