I may speak you may speak he may speak we may speak you may speak they may speak
V-ing form
I may be speaking you may be speaking he may be speaking we may be speaking you may be speaking they may be speaking
Perfect
I may have spoken, spoke you may have spoken, spoke he may have spoken, spoke we may have spoken, spoke you may have spoken, spoke they may have spoken, spoke
V-ing perfect
I may have been speaking you may have been speaking he may have been speaking we may have been speaking you may have been speaking they may have been speaking
Negation
Simple form
I may not speak you may not speak he may not speak we may not speak you may not speak they may not speak
V-ing form
I may not be speaking you may not be speaking he may not be speaking we may not be speaking you may not be speaking they may not be speaking
Perfect
I may not have spoken, spoke you may not have spoken, spoke he may not have spoken, spoke we may not have spoken, spoke you may not have spoken, spoke they may not have spoken, spoke
V-ing perfect
I may not have been speaking you may not have been speaking he may not have been speaking we may not have been speaking you may not have been speaking they may not have been speaking
Interrogative form
Simple form
may I speak? may you speak? may he speak? may we speak? may you speak? may they speak?
V-ing form
may I be speaking? may you be speaking? may he be speaking? may we be speaking? may you be speaking? may they be speaking?
Perfect
may I have spoken, spoke? may you have spoken, spoke? may he have spoken, spoke? may we have spoken, spoke? may you have spoken, spoke? may they have spoken, spoke?
V-ing perfect
may I have been speaking? may you have been speaking? may he have been speaking? may we have been speaking? may you have been speaking? may they have been speaking?
Interro-negative form
Simple form
may I not speak? may you not speak? may he not speak? may we not speak? may you not speak? may they not speak?
V-ing form
may I not be speaking? may you not be speaking? may he not be speaking? may we not be speaking? may you not be speaking? may they not be speaking?
Perfect
may I not have spoken, spoke? may you not have spoken, spoke? may he not have spoken, spoke? may we not have spoken, spoke? may you not have spoken, spoke? may they not have spoken, spoke?
V-ing perfect
may I not have been speaking? may you not have been speaking? may he not have been speaking? may we not have been speaking? may you not have been speaking? may they not have been speaking?