must infect
Verbe régulier : infect - infected- infected
Traduction française : infecter - contaminer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must infect
you must infect
he must infect
we must infect
you must infect
they must infect 	I must be infecting
you must be infecting
he must be infecting
we must be infecting
you must be infecting
they must be infecting	I must have infected
you must have infected
he must have infected
we must have infected
you must have infected
they must have infected	I must have been infecting
you must have been infecting
he must have been infecting
we must have been infecting
you must have been infecting
they must have been infecting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't infect
you mustn't infect
he mustn't infect
we mustn't infect
you mustn't infect
they mustn't infect 	I mustn't be infecting
you mustn't be infecting
he mustn't be infecting
we mustn't be infecting
you mustn't be infecting
they mustn't be infecting	I mustn't have infected
you mustn't have infected
he mustn't have infected
we mustn't have infected
you mustn't have infected
they mustn't have infected	I mustn't have been infecting
you mustn't have been infecting
he mustn't have been infecting
we mustn't have been infecting
you mustn't have been infecting
they mustn't have been infecting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I infect?
must you infect?
must he infect?
must we infect?
must you infect?
must they infect? 	must I be infecting?
must you be infecting?
must he be infecting?
must we be infecting?
must you be infecting?
must they be infecting? 	must I have infected?
must you have infected?
must he have infected?
must we have infected?
must you have infected?
must they have infected? 	must I have been infecting?
must you have been infecting?
must he have been infecting?
must we have been infecting?
must you have been infecting?
must they have been infecting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I infect?
mustn't you infect?
mustn't he infect?
mustn't we infect?
mustn't you infect?
mustn't they infect? 	mustn't I be infecting?
mustn't you be infecting?
mustn't he be infecting?
mustn't we be infecting?
mustn't you be infecting?
mustn't they be infecting? 	mustn't I have infected?
mustn't you have infected?
mustn't he have infected?
mustn't we have infected?
mustn't you have infected?
mustn't they have infected? 	mustn't I have been infecting?
mustn't you have been infecting?
mustn't he have been infecting?
mustn't we have been infecting?
mustn't you have been infecting?
mustn't they have been infecting?