I may say you may say he may say we may say you may say they may say
V-ing form
I may be saying you may be saying he may be saying we may be saying you may be saying they may be saying
Perfect
I may have said you may have said he may have said we may have said you may have said they may have said
V-ing perfect
I may have been saying you may have been saying he may have been saying we may have been saying you may have been saying they may have been saying
Negation
Simple form
I mayn't say you mayn't say he mayn't say we mayn't say you mayn't say they mayn't say
V-ing form
I mayn't be saying you mayn't be saying he mayn't be saying we mayn't be saying you mayn't be saying they mayn't be saying
Perfect
I mayn't have said you mayn't have said he mayn't have said we mayn't have said you mayn't have said they mayn't have said
V-ing perfect
I mayn't have been saying you mayn't have been saying he mayn't have been saying we mayn't have been saying you mayn't have been saying they mayn't have been saying
Interrogative form
Simple form
may I say? may you say? may he say? may we say? may you say? may they say?
V-ing form
may I be saying? may you be saying? may he be saying? may we be saying? may you be saying? may they be saying?
Perfect
may I have said? may you have said? may he have said? may we have said? may you have said? may they have said?
V-ing perfect
may I have been saying? may you have been saying? may he have been saying? may we have been saying? may you have been saying? may they have been saying?
Interro-negative form
Simple form
mayn't I say? mayn't you say? mayn't he say? mayn't we say? mayn't you say? mayn't they say?
V-ing form
mayn't I be saying? mayn't you be saying? mayn't he be saying? mayn't we be saying? mayn't you be saying? mayn't they be saying?
Perfect
mayn't I have said? mayn't you have said? mayn't he have said? mayn't we have said? mayn't you have said? mayn't they have said?
V-ing perfect
mayn't I have been saying? mayn't you have been saying? mayn't he have been saying? mayn't we have been saying? mayn't you have been saying? mayn't they have been saying?