must influence
Regular verb: influence - influenced- influenced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must influence
you must influence
he must influence
we must influence
you must influence
they must influence 	I must be influencing
you must be influencing
he must be influencing
we must be influencing
you must be influencing
they must be influencing	I must have influenced
you must have influenced
he must have influenced
we must have influenced
you must have influenced
they must have influenced	I must have been influencing
you must have been influencing
he must have been influencing
we must have been influencing
you must have been influencing
they must have been influencing	

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

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