I must unroll you must unroll she must unroll we must unroll you must unroll they must unroll
V-ing form
I must be unrolling you must be unrolling she must be unrolling we must be unrolling you must be unrolling they must be unrolling
Perfect
I must have unrolled you must have unrolled she must have unrolled we must have unrolled you must have unrolled they must have unrolled
V-ing perfect
I must have been unrolling you must have been unrolling she must have been unrolling we must have been unrolling you must have been unrolling they must have been unrolling
Negation
Simple form
I must not unroll you must not unroll she must not unroll we must not unroll you must not unroll they must not unroll
V-ing form
I must not be unrolling you must not be unrolling she must not be unrolling we must not be unrolling you must not be unrolling they must not be unrolling
Perfect
I must not have unrolled you must not have unrolled she must not have unrolled we must not have unrolled you must not have unrolled they must not have unrolled
V-ing perfect
I must not have been unrolling you must not have been unrolling she must not have been unrolling we must not have been unrolling you must not have been unrolling they must not have been unrolling
Interrogative form
Simple form
must I unroll? must you unroll? must she unroll? must we unroll? must you unroll? must they unroll?
V-ing form
must I be unrolling? must you be unrolling? must she be unrolling? must we be unrolling? must you be unrolling? must they be unrolling?
Perfect
must I have unrolled? must you have unrolled? must she have unrolled? must we have unrolled? must you have unrolled? must they have unrolled?
V-ing perfect
must I have been unrolling? must you have been unrolling? must she have been unrolling? must we have been unrolling? must you have been unrolling? must they have been unrolling?
Interro-negative form
Simple form
must I not unroll? must you not unroll? must she not unroll? must we not unroll? must you not unroll? must they not unroll?
V-ing form
must I not be unrolling? must you not be unrolling? must she not be unrolling? must we not be unrolling? must you not be unrolling? must they not be unrolling?
Perfect
must I not have unrolled? must you not have unrolled? must she not have unrolled? must we not have unrolled? must you not have unrolled? must they not have unrolled?
V-ing perfect
must I not have been unrolling? must you not have been unrolling? must she not have been unrolling? must we not have been unrolling? must you not have been unrolling? must they not have been unrolling?