I must bump-start you must bump-start she must bump-start we must bump-start you must bump-start they must bump-start
V-ing form
I must be bump-starting you must be bump-starting she must be bump-starting we must be bump-starting you must be bump-starting they must be bump-starting
Perfect
I must have bump-started you must have bump-started she must have bump-started we must have bump-started you must have bump-started they must have bump-started
V-ing perfect
I must have been bump-starting you must have been bump-starting she must have been bump-starting we must have been bump-starting you must have been bump-starting they must have been bump-starting
Negation
Simple form
I must not bump-start you must not bump-start she must not bump-start we must not bump-start you must not bump-start they must not bump-start
V-ing form
I must not be bump-starting you must not be bump-starting she must not be bump-starting we must not be bump-starting you must not be bump-starting they must not be bump-starting
Perfect
I must not have bump-started you must not have bump-started she must not have bump-started we must not have bump-started you must not have bump-started they must not have bump-started
V-ing perfect
I must not have been bump-starting you must not have been bump-starting she must not have been bump-starting we must not have been bump-starting you must not have been bump-starting they must not have been bump-starting
Interrogative form
Simple form
must I bump-start? must you bump-start? must she bump-start? must we bump-start? must you bump-start? must they bump-start?
V-ing form
must I be bump-starting? must you be bump-starting? must she be bump-starting? must we be bump-starting? must you be bump-starting? must they be bump-starting?
Perfect
must I have bump-started? must you have bump-started? must she have bump-started? must we have bump-started? must you have bump-started? must they have bump-started?
V-ing perfect
must I have been bump-starting? must you have been bump-starting? must she have been bump-starting? must we have been bump-starting? must you have been bump-starting? must they have been bump-starting?
Interro-negative form
Simple form
must I not bump-start? must you not bump-start? must she not bump-start? must we not bump-start? must you not bump-start? must they not bump-start?
V-ing form
must I not be bump-starting? must you not be bump-starting? must she not be bump-starting? must we not be bump-starting? must you not be bump-starting? must they not be bump-starting?
Perfect
must I not have bump-started? must you not have bump-started? must she not have bump-started? must we not have bump-started? must you not have bump-started? must they not have bump-started?
V-ing perfect
must I not have been bump-starting? must you not have been bump-starting? must she not have been bump-starting? must we not have been bump-starting? must you not have been bump-starting? must they not have been bump-starting?