I may say you may say she may say we may say you may say they may say
V-ing form
I may be saying you may be saying she may be saying we may be saying you may be saying they may be saying
Perfect
I may have said you may have said she 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 she may have been saying we may have been saying you may have been saying they may have been saying
Negation
Simple form
I may not say you may not say she may not say we may not say you may not say they may not say
V-ing form
I may not be saying you may not be saying she may not be saying we may not be saying you may not be saying they may not be saying
Perfect
I may not have said you may not have said she may not have said we may not have said you may not have said they may not have said
V-ing perfect
I may not have been saying you may not have been saying she may not have been saying we may not have been saying you may not have been saying they may not have been saying
Interrogative form
Simple form
may I say? may you say? may she say? may we say? may you say? may they say?
V-ing form
may I be saying? may you be saying? may she be saying? may we be saying? may you be saying? may they be saying?
Perfect
may I have said? may you have said? may she 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 she have been saying? may we have been saying? may you have been saying? may they have been saying?
Interro-negative form
Simple form
may I not say? may you not say? may she not say? may we not say? may you not say? may they not say?
V-ing form
may I not be saying? may you not be saying? may she not be saying? may we not be saying? may you not be saying? may they not be saying?
Perfect
may I not have said? may you not have said? may she not have said? may we not have said? may you not have said? may they not have said?
V-ing perfect
may I not have been saying? may you not have been saying? may she not have been saying? may we not have been saying? may you not have been saying? may they not have been saying?