I may frog you may frog she may frog we may frog you may frog they may frog
V-ing form
I may be froging you may be froging she may be froging we may be froging you may be froging they may be froging
Perfect
I may have froged you may have froged she may have froged we may have froged you may have froged they may have froged
V-ing perfect
I may have been froging you may have been froging she may have been froging we may have been froging you may have been froging they may have been froging
Negation
Simple form
I may not frog you may not frog she may not frog we may not frog you may not frog they may not frog
V-ing form
I may not be froging you may not be froging she may not be froging we may not be froging you may not be froging they may not be froging
Perfect
I may not have froged you may not have froged she may not have froged we may not have froged you may not have froged they may not have froged
V-ing perfect
I may not have been froging you may not have been froging she may not have been froging we may not have been froging you may not have been froging they may not have been froging
Interrogative form
Simple form
may I frog? may you frog? may she frog? may we frog? may you frog? may they frog?
V-ing form
may I be froging? may you be froging? may she be froging? may we be froging? may you be froging? may they be froging?
Perfect
may I have froged? may you have froged? may she have froged? may we have froged? may you have froged? may they have froged?
V-ing perfect
may I have been froging? may you have been froging? may she have been froging? may we have been froging? may you have been froging? may they have been froging?
Interro-negative form
Simple form
may I not frog? may you not frog? may she not frog? may we not frog? may you not frog? may they not frog?
V-ing form
may I not be froging? may you not be froging? may she not be froging? may we not be froging? may you not be froging? may they not be froging?
Perfect
may I not have froged? may you not have froged? may she not have froged? may we not have froged? may you not have froged? may they not have froged?
V-ing perfect
may I not have been froging? may you not have been froging? may she not have been froging? may we not have been froging? may you not have been froging? may they not have been froging?