I must disrupt you must disrupt she must disrupt we must disrupt you must disrupt they must disrupt
V-ing form
I must be disrupting you must be disrupting she must be disrupting we must be disrupting you must be disrupting they must be disrupting
Perfect
I must have disrupted you must have disrupted she must have disrupted we must have disrupted you must have disrupted they must have disrupted
V-ing perfect
I must have been disrupting you must have been disrupting she must have been disrupting we must have been disrupting you must have been disrupting they must have been disrupting
Negation
Simple form
I must not disrupt you must not disrupt she must not disrupt we must not disrupt you must not disrupt they must not disrupt
V-ing form
I must not be disrupting you must not be disrupting she must not be disrupting we must not be disrupting you must not be disrupting they must not be disrupting
Perfect
I must not have disrupted you must not have disrupted she must not have disrupted we must not have disrupted you must not have disrupted they must not have disrupted
V-ing perfect
I must not have been disrupting you must not have been disrupting she must not have been disrupting we must not have been disrupting you must not have been disrupting they must not have been disrupting
Interrogative form
Simple form
must I disrupt? must you disrupt? must she disrupt? must we disrupt? must you disrupt? must they disrupt?
V-ing form
must I be disrupting? must you be disrupting? must she be disrupting? must we be disrupting? must you be disrupting? must they be disrupting?
Perfect
must I have disrupted? must you have disrupted? must she have disrupted? must we have disrupted? must you have disrupted? must they have disrupted?
V-ing perfect
must I have been disrupting? must you have been disrupting? must she have been disrupting? must we have been disrupting? must you have been disrupting? must they have been disrupting?
Interro-negative form
Simple form
must I not disrupt? must you not disrupt? must she not disrupt? must we not disrupt? must you not disrupt? must they not disrupt?
V-ing form
must I not be disrupting? must you not be disrupting? must she not be disrupting? must we not be disrupting? must you not be disrupting? must they not be disrupting?
Perfect
must I not have disrupted? must you not have disrupted? must she not have disrupted? must we not have disrupted? must you not have disrupted? must they not have disrupted?
V-ing perfect
must I not have been disrupting? must you not have been disrupting? must she not have been disrupting? must we not have been disrupting? must you not have been disrupting? must they not have been disrupting?