I could tighten you could tighten she could tighten we could tighten you could tighten they could tighten
Forma con V-ing
I could be tightening you could be tightening she could be tightening we could be tightening you could be tightening they could be tightening
Perfetto
I could have tightened you could have tightened she could have tightened we could have tightened you could have tightened they could have tightened
Perfetto con V-ing
I could have been tightening you could have been tightening she could have been tightening we could have been tightening you could have been tightening they could have been tightening
Negazione
Forma semplice
I could not tighten you could not tighten she could not tighten we could not tighten you could not tighten they could not tighten
Forma con V-ing
I could not be tightening you could not be tightening she could not be tightening we could not be tightening you could not be tightening they could not be tightening
Perfetto
I could not have tightened you could not have tightened she could not have tightened we could not have tightened you could not have tightened they could not have tightened
Perfetto con V-ing
I could not have been tightening you could not have been tightening she could not have been tightening we could not have been tightening you could not have been tightening they could not have been tightening
Forma interrogativa
Forma semplice
could I tighten? could you tighten? could she tighten? could we tighten? could you tighten? could they tighten?
Forma con V-ing
could I be tightening? could you be tightening? could she be tightening? could we be tightening? could you be tightening? could they be tightening?
Perfetto
could I have tightened? could you have tightened? could she have tightened? could we have tightened? could you have tightened? could they have tightened?
Perfetto con V-ing
could I have been tightening? could you have been tightening? could she have been tightening? could we have been tightening? could you have been tightening? could they have been tightening?
Forma interro-negativa
Forma semplice
could I not tighten? could you not tighten? could she not tighten? could we not tighten? could you not tighten? could they not tighten?
Forma con V-ing
could I not be tightening? could you not be tightening? could she not be tightening? could we not be tightening? could you not be tightening? could they not be tightening?
Perfetto
could I not have tightened? could you not have tightened? could she not have tightened? could we not have tightened? could you not have tightened? could they not have tightened?
Perfetto con V-ing
could I not have been tightening? could you not have been tightening? could she not have been tightening? could we not have been tightening? could you not have been tightening? could they not have been tightening?