Coniugazione del verbo inglese COULD STIFFEN
Verbo regolare: stiffen - stiffened - stiffened
Affermazione
Forma semplice
I could stiffenyou could stiffen
she could stiffen
we could stiffen
you could stiffen
they could stiffen
Forma con V-ing
I could be stiffeningyou could be stiffening
she could be stiffening
we could be stiffening
you could be stiffening
they could be stiffening
Perfetto
I could have stiffenedyou could have stiffened
she could have stiffened
we could have stiffened
you could have stiffened
they could have stiffened
Perfetto con V-ing
I could have been stiffeningyou could have been stiffening
she could have been stiffening
we could have been stiffening
you could have been stiffening
they could have been stiffening
Negazione
Forma semplice
I could not stiffenyou could not stiffen
she could not stiffen
we could not stiffen
you could not stiffen
they could not stiffen
Forma con V-ing
I could not be stiffeningyou could not be stiffening
she could not be stiffening
we could not be stiffening
you could not be stiffening
they could not be stiffening
Perfetto
I could not have stiffenedyou could not have stiffened
she could not have stiffened
we could not have stiffened
you could not have stiffened
they could not have stiffened
Perfetto con V-ing
I could not have been stiffeningyou could not have been stiffening
she could not have been stiffening
we could not have been stiffening
you could not have been stiffening
they could not have been stiffening
Forma interrogativa
Forma semplice
could I stiffen?could you stiffen?
could she stiffen?
could we stiffen?
could you stiffen?
could they stiffen?
Forma con V-ing
could I be stiffening?could you be stiffening?
could she be stiffening?
could we be stiffening?
could you be stiffening?
could they be stiffening?
Perfetto
could I have stiffened?could you have stiffened?
could she have stiffened?
could we have stiffened?
could you have stiffened?
could they have stiffened?
Perfetto con V-ing
could I have been stiffening?could you have been stiffening?
could she have been stiffening?
could we have been stiffening?
could you have been stiffening?
could they have been stiffening?
Forma interro-negativa
Forma semplice
could I not stiffen?could you not stiffen?
could she not stiffen?
could we not stiffen?
could you not stiffen?
could they not stiffen?
Forma con V-ing
could I not be stiffening?could you not be stiffening?
could she not be stiffening?
could we not be stiffening?
could you not be stiffening?
could they not be stiffening?
Perfetto
could I not have stiffened?could you not have stiffened?
could she not have stiffened?
could we not have stiffened?
could you not have stiffened?
could they not have stiffened?
Perfetto con V-ing
could I not have been stiffening?could you not have been stiffening?
could she not have been stiffening?
could we not have been stiffening?
could you not have been stiffening?
could they not have been stiffening?