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