I could shallow you could shallow he could shallow we could shallow you could shallow they could shallow
Forme en V-ing
I could be shallowing you could be shallowing he could be shallowing we could be shallowing you could be shallowing they could be shallowing
Perfect
I could have shallowed you could have shallowed he could have shallowed we could have shallowed you could have shallowed they could have shallowed
Perfect en V-ing
I could have been shallowing you could have been shallowing he could have been shallowing we could have been shallowing you could have been shallowing they could have been shallowing
Négation
Forme simple
I could not shallow you could not shallow he could not shallow we could not shallow you could not shallow they could not shallow
Forme en V-ing
I could not be shallowing you could not be shallowing he could not be shallowing we could not be shallowing you could not be shallowing they could not be shallowing
Perfect
I could not have shallowed you could not have shallowed he could not have shallowed we could not have shallowed you could not have shallowed they could not have shallowed
Perfect en V-ing
I could not have been shallowing you could not have been shallowing he could not have been shallowing we could not have been shallowing you could not have been shallowing they could not have been shallowing
Forme interrogative
Forme simple
could I shallow? could you shallow? could he shallow? could we shallow? could you shallow? could they shallow?
Forme en V-ing
could I be shallowing? could you be shallowing? could he be shallowing? could we be shallowing? could you be shallowing? could they be shallowing?
Perfect
could I have shallowed? could you have shallowed? could he have shallowed? could we have shallowed? could you have shallowed? could they have shallowed?
Perfect en V-ing
could I have been shallowing? could you have been shallowing? could he have been shallowing? could we have been shallowing? could you have been shallowing? could they have been shallowing?
Forme interro-négative
Forme simple
could I not shallow? could you not shallow? could he not shallow? could we not shallow? could you not shallow? could they not shallow?
Forme en V-ing
could I not be shallowing? could you not be shallowing? could he not be shallowing? could we not be shallowing? could you not be shallowing? could they not be shallowing?
Perfect
could I not have shallowed? could you not have shallowed? could he not have shallowed? could we not have shallowed? could you not have shallowed? could they not have shallowed?
Perfect en V-ing
could I not have been shallowing? could you not have been shallowing? could he not have been shallowing? could we not have been shallowing? could you not have been shallowing? could they not have been shallowing?