I may think you may think she may think we may think you may think they may think
V-ing form
I may be thinking you may be thinking she may be thinking we may be thinking you may be thinking they may be thinking
Perfect
I may have thought you may have thought she may have thought we may have thought you may have thought they may have thought
V-ing perfect
I may have been thinking you may have been thinking she may have been thinking we may have been thinking you may have been thinking they may have been thinking
Negation
Simple form
I may not think you may not think she may not think we may not think you may not think they may not think
V-ing form
I may not be thinking you may not be thinking she may not be thinking we may not be thinking you may not be thinking they may not be thinking
Perfect
I may not have thought you may not have thought she may not have thought we may not have thought you may not have thought they may not have thought
V-ing perfect
I may not have been thinking you may not have been thinking she may not have been thinking we may not have been thinking you may not have been thinking they may not have been thinking
Interrogative form
Simple form
may I think? may you think? may she think? may we think? may you think? may they think?
V-ing form
may I be thinking? may you be thinking? may she be thinking? may we be thinking? may you be thinking? may they be thinking?
Perfect
may I have thought? may you have thought? may she have thought? may we have thought? may you have thought? may they have thought?
V-ing perfect
may I have been thinking? may you have been thinking? may she have been thinking? may we have been thinking? may you have been thinking? may they have been thinking?
Interro-negative form
Simple form
may I not think? may you not think? may she not think? may we not think? may you not think? may they not think?
V-ing form
may I not be thinking? may you not be thinking? may she not be thinking? may we not be thinking? may you not be thinking? may they not be thinking?
Perfect
may I not have thought? may you not have thought? may she not have thought? may we not have thought? may you not have thought? may they not have thought?
V-ing perfect
may I not have been thinking? may you not have been thinking? may she not have been thinking? may we not have been thinking? may you not have been thinking? may they not have been thinking?