I may authorise you may authorise she may authorise we may authorise you may authorise they may authorise
V-ing form
I may be authorising you may be authorising she may be authorising we may be authorising you may be authorising they may be authorising
Perfect
I may have authorised you may have authorised she may have authorised we may have authorised you may have authorised they may have authorised
V-ing perfect
I may have been authorising you may have been authorising she may have been authorising we may have been authorising you may have been authorising they may have been authorising
Negation
Simple form
I mayn't authorise you mayn't authorise she mayn't authorise we mayn't authorise you mayn't authorise they mayn't authorise
V-ing form
I mayn't be authorising you mayn't be authorising she mayn't be authorising we mayn't be authorising you mayn't be authorising they mayn't be authorising
Perfect
I mayn't have authorised you mayn't have authorised she mayn't have authorised we mayn't have authorised you mayn't have authorised they mayn't have authorised
V-ing perfect
I mayn't have been authorising you mayn't have been authorising she mayn't have been authorising we mayn't have been authorising you mayn't have been authorising they mayn't have been authorising
Interrogative form
Simple form
may I authorise? may you authorise? may she authorise? may we authorise? may you authorise? may they authorise?
V-ing form
may I be authorising? may you be authorising? may she be authorising? may we be authorising? may you be authorising? may they be authorising?
Perfect
may I have authorised? may you have authorised? may she have authorised? may we have authorised? may you have authorised? may they have authorised?
V-ing perfect
may I have been authorising? may you have been authorising? may she have been authorising? may we have been authorising? may you have been authorising? may they have been authorising?
Interro-negative form
Simple form
mayn't I authorise? mayn't you authorise? mayn't she authorise? mayn't we authorise? mayn't you authorise? mayn't they authorise?
V-ing form
mayn't I be authorising? mayn't you be authorising? mayn't she be authorising? mayn't we be authorising? mayn't you be authorising? mayn't they be authorising?
Perfect
mayn't I have authorised? mayn't you have authorised? mayn't she have authorised? mayn't we have authorised? mayn't you have authorised? mayn't they have authorised?
V-ing perfect
mayn't I have been authorising? mayn't you have been authorising? mayn't she have been authorising? mayn't we have been authorising? mayn't you have been authorising? mayn't they have been authorising?