I may vaporise you may vaporise he may vaporise we may vaporise you may vaporise they may vaporise
V-ing form
I may be vaporising you may be vaporising he may be vaporising we may be vaporising you may be vaporising they may be vaporising
Perfect
I may have vaporised you may have vaporised he may have vaporised we may have vaporised you may have vaporised they may have vaporised
V-ing perfect
I may have been vaporising you may have been vaporising he may have been vaporising we may have been vaporising you may have been vaporising they may have been vaporising
Negation
Simple form
I may not vaporise you may not vaporise he may not vaporise we may not vaporise you may not vaporise they may not vaporise
V-ing form
I may not be vaporising you may not be vaporising he may not be vaporising we may not be vaporising you may not be vaporising they may not be vaporising
Perfect
I may not have vaporised you may not have vaporised he may not have vaporised we may not have vaporised you may not have vaporised they may not have vaporised
V-ing perfect
I may not have been vaporising you may not have been vaporising he may not have been vaporising we may not have been vaporising you may not have been vaporising they may not have been vaporising
Interrogative form
Simple form
may I vaporise? may you vaporise? may he vaporise? may we vaporise? may you vaporise? may they vaporise?
V-ing form
may I be vaporising? may you be vaporising? may he be vaporising? may we be vaporising? may you be vaporising? may they be vaporising?
Perfect
may I have vaporised? may you have vaporised? may he have vaporised? may we have vaporised? may you have vaporised? may they have vaporised?
V-ing perfect
may I have been vaporising? may you have been vaporising? may he have been vaporising? may we have been vaporising? may you have been vaporising? may they have been vaporising?
Interro-negative form
Simple form
may I not vaporise? may you not vaporise? may he not vaporise? may we not vaporise? may you not vaporise? may they not vaporise?
V-ing form
may I not be vaporising? may you not be vaporising? may he not be vaporising? may we not be vaporising? may you not be vaporising? may they not be vaporising?
Perfect
may I not have vaporised? may you not have vaporised? may he not have vaporised? may we not have vaporised? may you not have vaporised? may they not have vaporised?
V-ing perfect
may I not have been vaporising? may you not have been vaporising? may he not have been vaporising? may we not have been vaporising? may you not have been vaporising? may they not have been vaporising?