must befriend
Verbe régulier : befriend - befriended- befriended
Traduction française : prendre en amitié - venir en aide à 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must befriend
you must befriend
he must befriend
we must befriend
you must befriend
they must befriend 	I must be befriending
you must be befriending
he must be befriending
we must be befriending
you must be befriending
they must be befriending	I must have befriended
you must have befriended
he must have befriended
we must have befriended
you must have befriended
they must have befriended	I must have been befriending
you must have been befriending
he must have been befriending
we must have been befriending
you must have been befriending
they must have been befriending	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't befriend
you mustn't befriend
he mustn't befriend
we mustn't befriend
you mustn't befriend
they mustn't befriend 	I mustn't be befriending
you mustn't be befriending
he mustn't be befriending
we mustn't be befriending
you mustn't be befriending
they mustn't be befriending	I mustn't have befriended
you mustn't have befriended
he mustn't have befriended
we mustn't have befriended
you mustn't have befriended
they mustn't have befriended	I mustn't have been befriending
you mustn't have been befriending
he mustn't have been befriending
we mustn't have been befriending
you mustn't have been befriending
they mustn't have been befriending	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I befriend?
must you befriend?
must he befriend?
must we befriend?
must you befriend?
must they befriend? 	must I be befriending?
must you be befriending?
must he be befriending?
must we be befriending?
must you be befriending?
must they be befriending? 	must I have befriended?
must you have befriended?
must he have befriended?
must we have befriended?
must you have befriended?
must they have befriended? 	must I have been befriending?
must you have been befriending?
must he have been befriending?
must we have been befriending?
must you have been befriending?
must they have been befriending? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I befriend?
mustn't you befriend?
mustn't he befriend?
mustn't we befriend?
mustn't you befriend?
mustn't they befriend? 	mustn't I be befriending?
mustn't you be befriending?
mustn't he be befriending?
mustn't we be befriending?
mustn't you be befriending?
mustn't they be befriending? 	mustn't I have befriended?
mustn't you have befriended?
mustn't he have befriended?
mustn't we have befriended?
mustn't you have befriended?
mustn't they have befriended? 	mustn't I have been befriending?
mustn't you have been befriending?
mustn't he have been befriending?
mustn't we have been befriending?
mustn't you have been befriending?
mustn't they have been befriending?