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 mayn't categorise you mayn't categorise he mayn't categorise we mayn't categorise you mayn't categorise they mayn't categorise
V-ing form
I mayn't be categorising you mayn't be categorising he mayn't be categorising we mayn't be categorising you mayn't be categorising they mayn't be categorising
Perfect
I mayn't have categorised you mayn't have categorised he mayn't have categorised we mayn't have categorised you mayn't have categorised they mayn't have categorised
V-ing perfect
I mayn't have been categorising you mayn't have been categorising he mayn't have been categorising we mayn't have been categorising you mayn't have been categorising they mayn't 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
mayn't I categorise? mayn't you categorise? mayn't he categorise? mayn't we categorise? mayn't you categorise? mayn't they categorise?
V-ing form
mayn't I be categorising? mayn't you be categorising? mayn't he be categorising? mayn't we be categorising? mayn't you be categorising? mayn't they be categorising?
Perfect
mayn't I have categorised? mayn't you have categorised? mayn't he have categorised? mayn't we have categorised? mayn't you have categorised? mayn't they have categorised?
V-ing perfect
mayn't I have been categorising? mayn't you have been categorising? mayn't he have been categorising? mayn't we have been categorising? mayn't you have been categorising? mayn't they have been categorising?