I could devitalise you could devitalise she could devitalise we could devitalise you could devitalise they could devitalise
Forme en V-ing
I could be devitalising you could be devitalising she could be devitalising we could be devitalising you could be devitalising they could be devitalising
Perfect
I could have devitalised you could have devitalised she could have devitalised we could have devitalised you could have devitalised they could have devitalised
Perfect en V-ing
I could have been devitalising you could have been devitalising she could have been devitalising we could have been devitalising you could have been devitalising they could have been devitalising
Négation
Forme simple
I could not devitalise you could not devitalise she could not devitalise we could not devitalise you could not devitalise they could not devitalise
Forme en V-ing
I could not be devitalising you could not be devitalising she could not be devitalising we could not be devitalising you could not be devitalising they could not be devitalising
Perfect
I could not have devitalised you could not have devitalised she could not have devitalised we could not have devitalised you could not have devitalised they could not have devitalised
Perfect en V-ing
I could not have been devitalising you could not have been devitalising she could not have been devitalising we could not have been devitalising you could not have been devitalising they could not have been devitalising
Forme interrogative
Forme simple
could I devitalise? could you devitalise? could she devitalise? could we devitalise? could you devitalise? could they devitalise?
Forme en V-ing
could I be devitalising? could you be devitalising? could she be devitalising? could we be devitalising? could you be devitalising? could they be devitalising?
Perfect
could I have devitalised? could you have devitalised? could she have devitalised? could we have devitalised? could you have devitalised? could they have devitalised?
Perfect en V-ing
could I have been devitalising? could you have been devitalising? could she have been devitalising? could we have been devitalising? could you have been devitalising? could they have been devitalising?
Forme interro-négative
Forme simple
could I not devitalise? could you not devitalise? could she not devitalise? could we not devitalise? could you not devitalise? could they not devitalise?
Forme en V-ing
could I not be devitalising? could you not be devitalising? could she not be devitalising? could we not be devitalising? could you not be devitalising? could they not be devitalising?
Perfect
could I not have devitalised? could you not have devitalised? could she not have devitalised? could we not have devitalised? could you not have devitalised? could they not have devitalised?
Perfect en V-ing
could I not have been devitalising? could you not have been devitalising? could she not have been devitalising? could we not have been devitalising? could you not have been devitalising? could they not have been devitalising?