I could turtle you could turtle she could turtle we could turtle you could turtle they could turtle
Forme en V-ing
I could be turtling you could be turtling she could be turtling we could be turtling you could be turtling they could be turtling
Perfect
I could have turtled you could have turtled she could have turtled we could have turtled you could have turtled they could have turtled
Perfect en V-ing
I could have been turtling you could have been turtling she could have been turtling we could have been turtling you could have been turtling they could have been turtling
Négation
Forme simple
I could not turtle you could not turtle she could not turtle we could not turtle you could not turtle they could not turtle
Forme en V-ing
I could not be turtling you could not be turtling she could not be turtling we could not be turtling you could not be turtling they could not be turtling
Perfect
I could not have turtled you could not have turtled she could not have turtled we could not have turtled you could not have turtled they could not have turtled
Perfect en V-ing
I could not have been turtling you could not have been turtling she could not have been turtling we could not have been turtling you could not have been turtling they could not have been turtling
Forme interrogative
Forme simple
could I turtle? could you turtle? could she turtle? could we turtle? could you turtle? could they turtle?
Forme en V-ing
could I be turtling? could you be turtling? could she be turtling? could we be turtling? could you be turtling? could they be turtling?
Perfect
could I have turtled? could you have turtled? could she have turtled? could we have turtled? could you have turtled? could they have turtled?
Perfect en V-ing
could I have been turtling? could you have been turtling? could she have been turtling? could we have been turtling? could you have been turtling? could they have been turtling?
Forme interro-négative
Forme simple
could I not turtle? could you not turtle? could she not turtle? could we not turtle? could you not turtle? could they not turtle?
Forme en V-ing
could I not be turtling? could you not be turtling? could she not be turtling? could we not be turtling? could you not be turtling? could they not be turtling?
Perfect
could I not have turtled? could you not have turtled? could she not have turtled? could we not have turtled? could you not have turtled? could they not have turtled?
Perfect en V-ing
could I not have been turtling? could you not have been turtling? could she not have been turtling? could we not have been turtling? could you not have been turtling? could they not have been turtling?