must influence
Regular verb: influence - influenced- influenced

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