I must fraternize you must fraternize he must fraternize we must fraternize you must fraternize they must fraternize
V-ing form
I must be fraternizing you must be fraternizing he must be fraternizing we must be fraternizing you must be fraternizing they must be fraternizing
Perfect
I must have fraternized you must have fraternized he 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 he 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 he 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 he 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 he 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 he 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 he fraternize? must we fraternize? must you fraternize? must they fraternize?
V-ing form
must I be fraternizing? must you be fraternizing? must he be fraternizing? must we be fraternizing? must you be fraternizing? must they be fraternizing?
Perfect
must I have fraternized? must you have fraternized? must he 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 he 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 he 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 he 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 he 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 he have been fraternizing? mustn't we have been fraternizing? mustn't you have been fraternizing? mustn't they have been fraternizing?