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