I could mortise you could mortise he could mortise we could mortise you could mortise they could mortise
Forme en V-ing
I could be mortising you could be mortising he could be mortising we could be mortising you could be mortising they could be mortising
Perfect
I could have mortised you could have mortised he could have mortised we could have mortised you could have mortised they could have mortised
Perfect en V-ing
I could have been mortising you could have been mortising he could have been mortising we could have been mortising you could have been mortising they could have been mortising
Négation
Forme simple
I could not mortise you could not mortise he could not mortise we could not mortise you could not mortise they could not mortise
Forme en V-ing
I could not be mortising you could not be mortising he could not be mortising we could not be mortising you could not be mortising they could not be mortising
Perfect
I could not have mortised you could not have mortised he could not have mortised we could not have mortised you could not have mortised they could not have mortised
Perfect en V-ing
I could not have been mortising you could not have been mortising he could not have been mortising we could not have been mortising you could not have been mortising they could not have been mortising
Forme interrogative
Forme simple
could I mortise? could you mortise? could he mortise? could we mortise? could you mortise? could they mortise?
Forme en V-ing
could I be mortising? could you be mortising? could he be mortising? could we be mortising? could you be mortising? could they be mortising?
Perfect
could I have mortised? could you have mortised? could he have mortised? could we have mortised? could you have mortised? could they have mortised?
Perfect en V-ing
could I have been mortising? could you have been mortising? could he have been mortising? could we have been mortising? could you have been mortising? could they have been mortising?
Forme interro-négative
Forme simple
could I not mortise? could you not mortise? could he not mortise? could we not mortise? could you not mortise? could they not mortise?
Forme en V-ing
could I not be mortising? could you not be mortising? could he not be mortising? could we not be mortising? could you not be mortising? could they not be mortising?
Perfect
could I not have mortised? could you not have mortised? could he not have mortised? could we not have mortised? could you not have mortised? could they not have mortised?
Perfect en V-ing
could I not have been mortising? could you not have been mortising? could he not have been mortising? could we not have been mortising? could you not have been mortising? could they not have been mortising?