I must hit you must hit she must hit we must hit you must hit they must hit
V-ing form
I must be hitting you must be hitting she must be hitting we must be hitting you must be hitting they must be hitting
Perfect
I must have hit you must have hit she must have hit we must have hit you must have hit they must have hit
V-ing perfect
I must have been hitting you must have been hitting she must have been hitting we must have been hitting you must have been hitting they must have been hitting
Negation
Simple form
I mustn't hit you mustn't hit she mustn't hit we mustn't hit you mustn't hit they mustn't hit
V-ing form
I mustn't be hitting you mustn't be hitting she mustn't be hitting we mustn't be hitting you mustn't be hitting they mustn't be hitting
Perfect
I mustn't have hit you mustn't have hit she mustn't have hit we mustn't have hit you mustn't have hit they mustn't have hit
V-ing perfect
I mustn't have been hitting you mustn't have been hitting she mustn't have been hitting we mustn't have been hitting you mustn't have been hitting they mustn't have been hitting
Interrogative form
Simple form
must I hit? must you hit? must she hit? must we hit? must you hit? must they hit?
V-ing form
must I be hitting? must you be hitting? must she be hitting? must we be hitting? must you be hitting? must they be hitting?
Perfect
must I have hit? must you have hit? must she have hit? must we have hit? must you have hit? must they have hit?
V-ing perfect
must I have been hitting? must you have been hitting? must she have been hitting? must we have been hitting? must you have been hitting? must they have been hitting?
Interro-negative form
Simple form
mustn't I hit? mustn't you hit? mustn't she hit? mustn't we hit? mustn't you hit? mustn't they hit?
V-ing form
mustn't I be hitting? mustn't you be hitting? mustn't she be hitting? mustn't we be hitting? mustn't you be hitting? mustn't they be hitting?
Perfect
mustn't I have hit? mustn't you have hit? mustn't she have hit? mustn't we have hit? mustn't you have hit? mustn't they have hit?
V-ing perfect
mustn't I have been hitting? mustn't you have been hitting? mustn't she have been hitting? mustn't we have been hitting? mustn't you have been hitting? mustn't they have been hitting?