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