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