I could scull you could scull he could scull we could scull you could scull they could scull
Forma con V-ing
I could be sculling you could be sculling he could be sculling we could be sculling you could be sculling they could be sculling
Perfecto
I could have sculled you could have sculled he could have sculled we could have sculled you could have sculled they could have sculled
Perfecto con V-ing
I could have been sculling you could have been sculling he could have been sculling we could have been sculling you could have been sculling they could have been sculling
Negación
Forma simple
I could not scull you could not scull he could not scull we could not scull you could not scull they could not scull
Forma con V-ing
I could not be sculling you could not be sculling he could not be sculling we could not be sculling you could not be sculling they could not be sculling
Perfecto
I could not have sculled you could not have sculled he could not have sculled we could not have sculled you could not have sculled they could not have sculled
Perfecto con V-ing
I could not have been sculling you could not have been sculling he could not have been sculling we could not have been sculling you could not have been sculling they could not have been sculling
Forma interrogativa
Forma simple
could I scull? could you scull? could he scull? could we scull? could you scull? could they scull?
Forma con V-ing
could I be sculling? could you be sculling? could he be sculling? could we be sculling? could you be sculling? could they be sculling?
Perfecto
could I have sculled? could you have sculled? could he have sculled? could we have sculled? could you have sculled? could they have sculled?
Perfecto con V-ing
could I have been sculling? could you have been sculling? could he have been sculling? could we have been sculling? could you have been sculling? could they have been sculling?
Forma interro-negativa
Forma simple
could I not scull? could you not scull? could he not scull? could we not scull? could you not scull? could they not scull?
Forma con V-ing
could I not be sculling? could you not be sculling? could he not be sculling? could we not be sculling? could you not be sculling? could they not be sculling?
Perfecto
could I not have sculled? could you not have sculled? could he not have sculled? could we not have sculled? could you not have sculled? could they not have sculled?
Perfecto con V-ing
could I not have been sculling? could you not have been sculling? could he not have been sculling? could we not have been sculling? could you not have been sculling? could they not have been sculling?