I must disgust you must disgust he must disgust we must disgust you must disgust they must disgust
V-ing form
I must be disgusting you must be disgusting he must be disgusting we must be disgusting you must be disgusting they must be disgusting
Perfect
I must have disgusted you must have disgusted he must have disgusted we must have disgusted you must have disgusted they must have disgusted
V-ing perfect
I must have been disgusting you must have been disgusting he must have been disgusting we must have been disgusting you must have been disgusting they must have been disgusting
Negation
Simple form
I mustn't disgust you mustn't disgust he mustn't disgust we mustn't disgust you mustn't disgust they mustn't disgust
V-ing form
I mustn't be disgusting you mustn't be disgusting he mustn't be disgusting we mustn't be disgusting you mustn't be disgusting they mustn't be disgusting
Perfect
I mustn't have disgusted you mustn't have disgusted he mustn't have disgusted we mustn't have disgusted you mustn't have disgusted they mustn't have disgusted
V-ing perfect
I mustn't have been disgusting you mustn't have been disgusting he mustn't have been disgusting we mustn't have been disgusting you mustn't have been disgusting they mustn't have been disgusting
Interrogative form
Simple form
must I disgust? must you disgust? must he disgust? must we disgust? must you disgust? must they disgust?
V-ing form
must I be disgusting? must you be disgusting? must he be disgusting? must we be disgusting? must you be disgusting? must they be disgusting?
Perfect
must I have disgusted? must you have disgusted? must he have disgusted? must we have disgusted? must you have disgusted? must they have disgusted?
V-ing perfect
must I have been disgusting? must you have been disgusting? must he have been disgusting? must we have been disgusting? must you have been disgusting? must they have been disgusting?
Interro-negative form
Simple form
mustn't I disgust? mustn't you disgust? mustn't he disgust? mustn't we disgust? mustn't you disgust? mustn't they disgust?
V-ing form
mustn't I be disgusting? mustn't you be disgusting? mustn't he be disgusting? mustn't we be disgusting? mustn't you be disgusting? mustn't they be disgusting?
Perfect
mustn't I have disgusted? mustn't you have disgusted? mustn't he have disgusted? mustn't we have disgusted? mustn't you have disgusted? mustn't they have disgusted?
V-ing perfect
mustn't I have been disgusting? mustn't you have been disgusting? mustn't he have been disgusting? mustn't we have been disgusting? mustn't you have been disgusting? mustn't they have been disgusting?