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