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