I may categorise you may categorise he may categorise we may categorise you may categorise they may categorise
V-ing form
I may be categorising you may be categorising he may be categorising we may be categorising you may be categorising they may be categorising
Perfect
I may have categorised you may have categorised he may have categorised we may have categorised you may have categorised they may have categorised
V-ing perfect
I may have been categorising you may have been categorising he may have been categorising we may have been categorising you may have been categorising they may have been categorising
Negation
Simple form
I may not categorise you may not categorise he may not categorise we may not categorise you may not categorise they may not categorise
V-ing form
I may not be categorising you may not be categorising he may not be categorising we may not be categorising you may not be categorising they may not be categorising
Perfect
I may not have categorised you may not have categorised he may not have categorised we may not have categorised you may not have categorised they may not have categorised
V-ing perfect
I may not have been categorising you may not have been categorising he may not have been categorising we may not have been categorising you may not have been categorising they may not have been categorising
Interrogative form
Simple form
may I categorise? may you categorise? may he categorise? may we categorise? may you categorise? may they categorise?
V-ing form
may I be categorising? may you be categorising? may he be categorising? may we be categorising? may you be categorising? may they be categorising?
Perfect
may I have categorised? may you have categorised? may he have categorised? may we have categorised? may you have categorised? may they have categorised?
V-ing perfect
may I have been categorising? may you have been categorising? may he have been categorising? may we have been categorising? may you have been categorising? may they have been categorising?
Interro-negative form
Simple form
may I not categorise? may you not categorise? may he not categorise? may we not categorise? may you not categorise? may they not categorise?
V-ing form
may I not be categorising? may you not be categorising? may he not be categorising? may we not be categorising? may you not be categorising? may they not be categorising?
Perfect
may I not have categorised? may you not have categorised? may he not have categorised? may we not have categorised? may you not have categorised? may they not have categorised?
V-ing perfect
may I not have been categorising? may you not have been categorising? may he not have been categorising? may we not have been categorising? may you not have been categorising? may they not have been categorising?