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 mustn't unroll you mustn't unroll he mustn't unroll we mustn't unroll you mustn't unroll they mustn't unroll
V-ing form
I mustn't be unrolling you mustn't be unrolling he mustn't be unrolling we mustn't be unrolling you mustn't be unrolling they mustn't be unrolling
Perfect
I mustn't have unrolled you mustn't have unrolled he mustn't have unrolled we mustn't have unrolled you mustn't have unrolled they mustn't have unrolled
V-ing perfect
I mustn't have been unrolling you mustn't have been unrolling he mustn't have been unrolling we mustn't have been unrolling you mustn't have been unrolling they mustn't 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
mustn't I unroll? mustn't you unroll? mustn't he unroll? mustn't we unroll? mustn't you unroll? mustn't they unroll?
V-ing form
mustn't I be unrolling? mustn't you be unrolling? mustn't he be unrolling? mustn't we be unrolling? mustn't you be unrolling? mustn't they be unrolling?
Perfect
mustn't I have unrolled? mustn't you have unrolled? mustn't he have unrolled? mustn't we have unrolled? mustn't you have unrolled? mustn't they have unrolled?
V-ing perfect
mustn't I have been unrolling? mustn't you have been unrolling? mustn't he have been unrolling? mustn't we have been unrolling? mustn't you have been unrolling? mustn't they have been unrolling?