I must unroll you must unroll he must unroll we must unroll you must unroll they must unroll
V-ing form
I must be unrolling you must be unrolling he must be unrolling we must be unrolling you must be unrolling they must be unrolling
Perfect
I must have unrolled you must have unrolled he 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 he 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 he 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 he 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 he 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 he 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 he unroll? must we unroll? must you unroll? must they unroll?
V-ing form
must I be unrolling? must you be unrolling? must he be unrolling? must we be unrolling? must you be unrolling? must they be unrolling?
Perfect
must I have unrolled? must you have unrolled? must he 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 he 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 he 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 he 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 he 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 he not have been unrolling? must we not have been unrolling? must you not have been unrolling? must they not have been unrolling?