I must scissor you must scissor she must scissor we must scissor you must scissor they must scissor
V-ing form
I must be scissoring you must be scissoring she must be scissoring we must be scissoring you must be scissoring they must be scissoring
Perfect
I must have scissored you must have scissored she must have scissored we must have scissored you must have scissored they must have scissored
V-ing perfect
I must have been scissoring you must have been scissoring she must have been scissoring we must have been scissoring you must have been scissoring they must have been scissoring
Negation
Simple form
I must not scissor you must not scissor she must not scissor we must not scissor you must not scissor they must not scissor
V-ing form
I must not be scissoring you must not be scissoring she must not be scissoring we must not be scissoring you must not be scissoring they must not be scissoring
Perfect
I must not have scissored you must not have scissored she must not have scissored we must not have scissored you must not have scissored they must not have scissored
V-ing perfect
I must not have been scissoring you must not have been scissoring she must not have been scissoring we must not have been scissoring you must not have been scissoring they must not have been scissoring
Interrogative form
Simple form
must I scissor? must you scissor? must she scissor? must we scissor? must you scissor? must they scissor?
V-ing form
must I be scissoring? must you be scissoring? must she be scissoring? must we be scissoring? must you be scissoring? must they be scissoring?
Perfect
must I have scissored? must you have scissored? must she have scissored? must we have scissored? must you have scissored? must they have scissored?
V-ing perfect
must I have been scissoring? must you have been scissoring? must she have been scissoring? must we have been scissoring? must you have been scissoring? must they have been scissoring?
Interro-negative form
Simple form
must I not scissor? must you not scissor? must she not scissor? must we not scissor? must you not scissor? must they not scissor?
V-ing form
must I not be scissoring? must you not be scissoring? must she not be scissoring? must we not be scissoring? must you not be scissoring? must they not be scissoring?
Perfect
must I not have scissored? must you not have scissored? must she not have scissored? must we not have scissored? must you not have scissored? must they not have scissored?
V-ing perfect
must I not have been scissoring? must you not have been scissoring? must she not have been scissoring? must we not have been scissoring? must you not have been scissoring? must they not have been scissoring?