I could devitalise you could devitalise he could devitalise we could devitalise you could devitalise they could devitalise
Forme en V-ing
I could be devitalising you could be devitalising he could be devitalising we could be devitalising you could be devitalising they could be devitalising
Perfect
I could have devitalised you could have devitalised he 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 he could have been devitalising we could have been devitalising you could have been devitalising they could have been devitalising
Négation
Forme simple
I couldn't devitalise you couldn't devitalise he couldn't devitalise we couldn't devitalise you couldn't devitalise they couldn't devitalise
Forme en V-ing
I couldn't be devitalising you couldn't be devitalising he couldn't be devitalising we couldn't be devitalising you couldn't be devitalising they couldn't be devitalising
Perfect
I couldn't have devitalised you couldn't have devitalised he couldn't have devitalised we couldn't have devitalised you couldn't have devitalised they couldn't have devitalised
Perfect en V-ing
I couldn't have been devitalising you couldn't have been devitalising he couldn't have been devitalising we couldn't have been devitalising you couldn't have been devitalising they couldn't have been devitalising
Forme interrogative
Forme simple
could I devitalise? could you devitalise? could he devitalise? could we devitalise? could you devitalise? could they devitalise?
Forme en V-ing
could I be devitalising? could you be devitalising? could he be devitalising? could we be devitalising? could you be devitalising? could they be devitalising?
Perfect
could I have devitalised? could you have devitalised? could he 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 he have been devitalising? could we have been devitalising? could you have been devitalising? could they have been devitalising?
Forme interro-négative
Forme simple
couldn't I devitalise? couldn't you devitalise? couldn't he devitalise? couldn't we devitalise? couldn't you devitalise? couldn't they devitalise?
Forme en V-ing
couldn't I be devitalising? couldn't you be devitalising? couldn't he be devitalising? couldn't we be devitalising? couldn't you be devitalising? couldn't they be devitalising?
Perfect
couldn't I have devitalised? couldn't you have devitalised? couldn't he have devitalised? couldn't we have devitalised? couldn't you have devitalised? couldn't they have devitalised?
Perfect en V-ing
couldn't I have been devitalising? couldn't you have been devitalising? couldn't he have been devitalising? couldn't we have been devitalising? couldn't you have been devitalising? couldn't they have been devitalising?