Verbo regular: retighten - retightened - retightened
Afirmação
Forma simple
I could retighten you could retighten he could retighten we could retighten you could retighten they could retighten
Forma com V-ing
I could be retightening you could be retightening he could be retightening we could be retightening you could be retightening they could be retightening
Perfeito
I could have retightened you could have retightened he could have retightened we could have retightened you could have retightened they could have retightened
Perfeito com V-ing
I could have been retightening you could have been retightening he could have been retightening we could have been retightening you could have been retightening they could have been retightening
Negação
Forma simple
I could not retighten you could not retighten he could not retighten we could not retighten you could not retighten they could not retighten
Forma com V-ing
I could not be retightening you could not be retightening he could not be retightening we could not be retightening you could not be retightening they could not be retightening
Perfeito
I could not have retightened you could not have retightened he could not have retightened we could not have retightened you could not have retightened they could not have retightened
Perfeito com V-ing
I could not have been retightening you could not have been retightening he could not have been retightening we could not have been retightening you could not have been retightening they could not have been retightening
Forma interrogativa
Forma simple
could I retighten? could you retighten? could he retighten? could we retighten? could you retighten? could they retighten?
Forma com V-ing
could I be retightening? could you be retightening? could he be retightening? could we be retightening? could you be retightening? could they be retightening?
Perfeito
could I have retightened? could you have retightened? could he have retightened? could we have retightened? could you have retightened? could they have retightened?
Perfeito com V-ing
could I have been retightening? could you have been retightening? could he have been retightening? could we have been retightening? could you have been retightening? could they have been retightening?
Forma interro-Negação
Forma simple
could I not retighten? could you not retighten? could he not retighten? could we not retighten? could you not retighten? could they not retighten?
Forma com V-ing
could I not be retightening? could you not be retightening? could he not be retightening? could we not be retightening? could you not be retightening? could they not be retightening?
Perfeito
could I not have retightened? could you not have retightened? could he not have retightened? could we not have retightened? could you not have retightened? could they not have retightened?
Perfeito com V-ing
could I not have been retightening? could you not have been retightening? could he not have been retightening? could we not have been retightening? could you not have been retightening? could they not have been retightening?