Conjugación del verbo inglés COULD FASTEN
Verbo regular: fasten - fastened - fastened
Afirmación
Forma simple
I could fastenyou could fasten
he could fasten
we could fasten
you could fasten
they could fasten
Forma con V-ing
I could be fasteningyou could be fastening
he could be fastening
we could be fastening
you could be fastening
they could be fastening
Perfecto
I could have fastenedyou could have fastened
he could have fastened
we could have fastened
you could have fastened
they could have fastened
Perfecto con V-ing
I could have been fasteningyou could have been fastening
he could have been fastening
we could have been fastening
you could have been fastening
they could have been fastening
Negación
Forma simple
I couldn't fastenyou couldn't fasten
he couldn't fasten
we couldn't fasten
you couldn't fasten
they couldn't fasten
Forma con V-ing
I couldn't be fasteningyou couldn't be fastening
he couldn't be fastening
we couldn't be fastening
you couldn't be fastening
they couldn't be fastening
Perfecto
I couldn't have fastenedyou couldn't have fastened
he couldn't have fastened
we couldn't have fastened
you couldn't have fastened
they couldn't have fastened
Perfecto con V-ing
I couldn't have been fasteningyou couldn't have been fastening
he couldn't have been fastening
we couldn't have been fastening
you couldn't have been fastening
they couldn't have been fastening
Forma interrogativa
Forma simple
could I fasten?could you fasten?
could he fasten?
could we fasten?
could you fasten?
could they fasten?
Forma con V-ing
could I be fastening?could you be fastening?
could he be fastening?
could we be fastening?
could you be fastening?
could they be fastening?
Perfecto
could I have fastened?could you have fastened?
could he 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 he have been fastening?
could we have been fastening?
could you have been fastening?
could they have been fastening?
Forma interro-negativa
Forma simple
couldn't I fasten?couldn't you fasten?
couldn't he fasten?
couldn't we fasten?
couldn't you fasten?
couldn't they fasten?
Forma con V-ing
couldn't I be fastening?couldn't you be fastening?
couldn't he be fastening?
couldn't we be fastening?
couldn't you be fastening?
couldn't they be fastening?
Perfecto
couldn't I have fastened?couldn't you have fastened?
couldn't he have fastened?
couldn't we have fastened?
couldn't you have fastened?
couldn't they have fastened?
Perfecto con V-ing
couldn't I have been fastening?couldn't you have been fastening?
couldn't he have been fastening?
couldn't we have been fastening?
couldn't you have been fastening?
couldn't they have been fastening?