Conjugación del verbo inglés COULD TIGHTEN
Verbo regular: tighten - tightened - tightened
Afirmación
Forma simple
I could tightenyou could tighten
he could tighten
we could tighten
you could tighten
they could tighten
Forma con V-ing
I could be tighteningyou could be tightening
he could be tightening
we could be tightening
you could be tightening
they could be tightening
Perfecto
I could have tightenedyou could have tightened
he could have tightened
we could have tightened
you could have tightened
they could have tightened
Perfecto con V-ing
I could have been tighteningyou could have been tightening
he could have been tightening
we could have been tightening
you could have been tightening
they could have been tightening
Negación
Forma simple
I couldn't tightenyou couldn't tighten
he couldn't tighten
we couldn't tighten
you couldn't tighten
they couldn't tighten
Forma con V-ing
I couldn't be tighteningyou couldn't be tightening
he couldn't be tightening
we couldn't be tightening
you couldn't be tightening
they couldn't be tightening
Perfecto
I couldn't have tightenedyou couldn't have tightened
he couldn't have tightened
we couldn't have tightened
you couldn't have tightened
they couldn't have tightened
Perfecto con V-ing
I couldn't have been tighteningyou couldn't have been tightening
he couldn't have been tightening
we couldn't have been tightening
you couldn't have been tightening
they couldn't have been tightening
Forma interrogativa
Forma simple
could I tighten?could you tighten?
could he tighten?
could we tighten?
could you tighten?
could they tighten?
Forma con V-ing
could I be tightening?could you be tightening?
could he be tightening?
could we be tightening?
could you be tightening?
could they be tightening?
Perfecto
could I have tightened?could you have tightened?
could he have tightened?
could we have tightened?
could you have tightened?
could they have tightened?
Perfecto con V-ing
could I have been tightening?could you have been tightening?
could he have been tightening?
could we have been tightening?
could you have been tightening?
could they have been tightening?
Forma interro-negativa
Forma simple
couldn't I tighten?couldn't you tighten?
couldn't he tighten?
couldn't we tighten?
couldn't you tighten?
couldn't they tighten?
Forma con V-ing
couldn't I be tightening?couldn't you be tightening?
couldn't he be tightening?
couldn't we be tightening?
couldn't you be tightening?
couldn't they be tightening?
Perfecto
couldn't I have tightened?couldn't you have tightened?
couldn't he have tightened?
couldn't we have tightened?
couldn't you have tightened?
couldn't they have tightened?
Perfecto con V-ing
couldn't I have been tightening?couldn't you have been tightening?
couldn't he have been tightening?
couldn't we have been tightening?
couldn't you have been tightening?
couldn't they have been tightening?