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 may not authorise you may not authorise she may not authorise we may not authorise you may not authorise they may not authorise
V-ing form
I may not be authorising you may not be authorising she may not be authorising we may not be authorising you may not be authorising they may not be authorising
Perfect
I may not have authorised you may not have authorised she may not have authorised we may not have authorised you may not have authorised they may not have authorised
V-ing perfect
I may not have been authorising you may not have been authorising she may not have been authorising we may not have been authorising you may not have been authorising they may not 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
may I not authorise? may you not authorise? may she not authorise? may we not authorise? may you not authorise? may they not authorise?
V-ing form
may I not be authorising? may you not be authorising? may she not be authorising? may we not be authorising? may you not be authorising? may they not be authorising?
Perfect
may I not have authorised? may you not have authorised? may she not have authorised? may we not have authorised? may you not have authorised? may they not have authorised?
V-ing perfect
may I not have been authorising? may you not have been authorising? may she not have been authorising? may we not have been authorising? may you not have been authorising? may they not have been authorising?