I may slip you may slip he may slip we may slip you may slip they may slip
V-ing form
I may be slipping you may be slipping he may be slipping we may be slipping you may be slipping they may be slipping
Perfect
I may have slipped you may have slipped he may have slipped we may have slipped you may have slipped they may have slipped
V-ing perfect
I may have been slipping you may have been slipping he may have been slipping we may have been slipping you may have been slipping they may have been slipping
Negation
Simple form
I may not slip you may not slip he may not slip we may not slip you may not slip they may not slip
V-ing form
I may not be slipping you may not be slipping he may not be slipping we may not be slipping you may not be slipping they may not be slipping
Perfect
I may not have slipped you may not have slipped he may not have slipped we may not have slipped you may not have slipped they may not have slipped
V-ing perfect
I may not have been slipping you may not have been slipping he may not have been slipping we may not have been slipping you may not have been slipping they may not have been slipping
Interrogative form
Simple form
may I slip? may you slip? may he slip? may we slip? may you slip? may they slip?
V-ing form
may I be slipping? may you be slipping? may he be slipping? may we be slipping? may you be slipping? may they be slipping?
Perfect
may I have slipped? may you have slipped? may he have slipped? may we have slipped? may you have slipped? may they have slipped?
V-ing perfect
may I have been slipping? may you have been slipping? may he have been slipping? may we have been slipping? may you have been slipping? may they have been slipping?
Interro-negative form
Simple form
may I not slip? may you not slip? may he not slip? may we not slip? may you not slip? may they not slip?
V-ing form
may I not be slipping? may you not be slipping? may he not be slipping? may we not be slipping? may you not be slipping? may they not be slipping?
Perfect
may I not have slipped? may you not have slipped? may he not have slipped? may we not have slipped? may you not have slipped? may they not have slipped?
V-ing perfect
may I not have been slipping? may you not have been slipping? may he not have been slipping? may we not have been slipping? may you not have been slipping? may they not have been slipping?