must infest
Verbe régulier : infest - infested- infested
Traduction française : infester 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must infest
you must infest
he must infest
we must infest
you must infest
they must infest 	I must be infesting
you must be infesting
he must be infesting
we must be infesting
you must be infesting
they must be infesting	I must have infested
you must have infested
he must have infested
we must have infested
you must have infested
they must have infested	I must have been infesting
you must have been infesting
he must have been infesting
we must have been infesting
you must have been infesting
they must have been infesting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't infest
you mustn't infest
he mustn't infest
we mustn't infest
you mustn't infest
they mustn't infest 	I mustn't be infesting
you mustn't be infesting
he mustn't be infesting
we mustn't be infesting
you mustn't be infesting
they mustn't be infesting	I mustn't have infested
you mustn't have infested
he mustn't have infested
we mustn't have infested
you mustn't have infested
they mustn't have infested	I mustn't have been infesting
you mustn't have been infesting
he mustn't have been infesting
we mustn't have been infesting
you mustn't have been infesting
they mustn't have been infesting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I infest?
must you infest?
must he infest?
must we infest?
must you infest?
must they infest? 	must I be infesting?
must you be infesting?
must he be infesting?
must we be infesting?
must you be infesting?
must they be infesting? 	must I have infested?
must you have infested?
must he have infested?
must we have infested?
must you have infested?
must they have infested? 	must I have been infesting?
must you have been infesting?
must he have been infesting?
must we have been infesting?
must you have been infesting?
must they have been infesting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I infest?
mustn't you infest?
mustn't he infest?
mustn't we infest?
mustn't you infest?
mustn't they infest? 	mustn't I be infesting?
mustn't you be infesting?
mustn't he be infesting?
mustn't we be infesting?
mustn't you be infesting?
mustn't they be infesting? 	mustn't I have infested?
mustn't you have infested?
mustn't he have infested?
mustn't we have infested?
mustn't you have infested?
mustn't they have infested? 	mustn't I have been infesting?
mustn't you have been infesting?
mustn't he have been infesting?
mustn't we have been infesting?
mustn't you have been infesting?
mustn't they have been infesting?