I may trip you may trip he may trip we may trip you may trip they may trip
V-ing form
I may be tripping you may be tripping he may be tripping we may be tripping you may be tripping they may be tripping
Perfect
I may have tripped you may have tripped he may have tripped we may have tripped you may have tripped they may have tripped
V-ing perfect
I may have been tripping you may have been tripping he may have been tripping we may have been tripping you may have been tripping they may have been tripping
Negation
Simple form
I may not trip you may not trip he may not trip we may not trip you may not trip they may not trip
V-ing form
I may not be tripping you may not be tripping he may not be tripping we may not be tripping you may not be tripping they may not be tripping
Perfect
I may not have tripped you may not have tripped he may not have tripped we may not have tripped you may not have tripped they may not have tripped
V-ing perfect
I may not have been tripping you may not have been tripping he may not have been tripping we may not have been tripping you may not have been tripping they may not have been tripping
Interrogative form
Simple form
may I trip? may you trip? may he trip? may we trip? may you trip? may they trip?
V-ing form
may I be tripping? may you be tripping? may he be tripping? may we be tripping? may you be tripping? may they be tripping?
Perfect
may I have tripped? may you have tripped? may he have tripped? may we have tripped? may you have tripped? may they have tripped?
V-ing perfect
may I have been tripping? may you have been tripping? may he have been tripping? may we have been tripping? may you have been tripping? may they have been tripping?
Interro-negative form
Simple form
may I not trip? may you not trip? may he not trip? may we not trip? may you not trip? may they not trip?
V-ing form
may I not be tripping? may you not be tripping? may he not be tripping? may we not be tripping? may you not be tripping? may they not be tripping?
Perfect
may I not have tripped? may you not have tripped? may he not have tripped? may we not have tripped? may you not have tripped? may they not have tripped?
V-ing perfect
may I not have been tripping? may you not have been tripping? may he not have been tripping? may we not have been tripping? may you not have been tripping? may they not have been tripping?