I may devitalise you may devitalise he may devitalise we may devitalise you may devitalise they may devitalise
V-ing form
I may be devitalising you may be devitalising he may be devitalising we may be devitalising you may be devitalising they may be devitalising
Perfect
I may have devitalised you may have devitalised he may have devitalised we may have devitalised you may have devitalised they may have devitalised
V-ing perfect
I may have been devitalising you may have been devitalising he may have been devitalising we may have been devitalising you may have been devitalising they may have been devitalising
Negation
Simple form
I may not devitalise you may not devitalise he may not devitalise we may not devitalise you may not devitalise they may not devitalise
V-ing form
I may not be devitalising you may not be devitalising he may not be devitalising we may not be devitalising you may not be devitalising they may not be devitalising
Perfect
I may not have devitalised you may not have devitalised he may not have devitalised we may not have devitalised you may not have devitalised they may not have devitalised
V-ing perfect
I may not have been devitalising you may not have been devitalising he may not have been devitalising we may not have been devitalising you may not have been devitalising they may not have been devitalising
Interrogative form
Simple form
may I devitalise? may you devitalise? may he devitalise? may we devitalise? may you devitalise? may they devitalise?
V-ing form
may I be devitalising? may you be devitalising? may he be devitalising? may we be devitalising? may you be devitalising? may they be devitalising?
Perfect
may I have devitalised? may you have devitalised? may he have devitalised? may we have devitalised? may you have devitalised? may they have devitalised?
V-ing perfect
may I have been devitalising? may you have been devitalising? may he have been devitalising? may we have been devitalising? may you have been devitalising? may they have been devitalising?
Interro-negative form
Simple form
may I not devitalise? may you not devitalise? may he not devitalise? may we not devitalise? may you not devitalise? may they not devitalise?
V-ing form
may I not be devitalising? may you not be devitalising? may he not be devitalising? may we not be devitalising? may you not be devitalising? may they not be devitalising?
Perfect
may I not have devitalised? may you not have devitalised? may he not have devitalised? may we not have devitalised? may you not have devitalised? may they not have devitalised?
V-ing perfect
may I not have been devitalising? may you not have been devitalising? may he not have been devitalising? may we not have been devitalising? may you not have been devitalising? may they not have been devitalising?