I could calender you could calender he could calender we could calender you could calender they could calender
Forma com V-ing
I could be calendering you could be calendering he could be calendering we could be calendering you could be calendering they could be calendering
Perfeito
I could have calendered you could have calendered he could have calendered we could have calendered you could have calendered they could have calendered
Perfeito com V-ing
I could have been calendering you could have been calendering he could have been calendering we could have been calendering you could have been calendering they could have been calendering
Negação
Forma simple
I could not calender you could not calender he could not calender we could not calender you could not calender they could not calender
Forma com V-ing
I could not be calendering you could not be calendering he could not be calendering we could not be calendering you could not be calendering they could not be calendering
Perfeito
I could not have calendered you could not have calendered he could not have calendered we could not have calendered you could not have calendered they could not have calendered
Perfeito com V-ing
I could not have been calendering you could not have been calendering he could not have been calendering we could not have been calendering you could not have been calendering they could not have been calendering
Forma interrogativa
Forma simple
could I calender? could you calender? could he calender? could we calender? could you calender? could they calender?
Forma com V-ing
could I be calendering? could you be calendering? could he be calendering? could we be calendering? could you be calendering? could they be calendering?
Perfeito
could I have calendered? could you have calendered? could he have calendered? could we have calendered? could you have calendered? could they have calendered?
Perfeito com V-ing
could I have been calendering? could you have been calendering? could he have been calendering? could we have been calendering? could you have been calendering? could they have been calendering?
Forma interro-Negação
Forma simple
could I not calender? could you not calender? could he not calender? could we not calender? could you not calender? could they not calender?
Forma com V-ing
could I not be calendering? could you not be calendering? could he not be calendering? could we not be calendering? could you not be calendering? could they not be calendering?
Perfeito
could I not have calendered? could you not have calendered? could he not have calendered? could we not have calendered? could you not have calendered? could they not have calendered?
Perfeito com V-ing
could I not have been calendering? could you not have been calendering? could he not have been calendering? could we not have been calendering? could you not have been calendering? could they not have been calendering?