must presurround
Verbe régulier : presurround - presurrounded- presurrounded

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must presurround
you must presurround
he must presurround
we must presurround
you must presurround
they must presurround 	I must be presurrounding
you must be presurrounding
he must be presurrounding
we must be presurrounding
you must be presurrounding
they must be presurrounding	I must have presurrounded
you must have presurrounded
he must have presurrounded
we must have presurrounded
you must have presurrounded
they must have presurrounded	I must have been presurrounding
you must have been presurrounding
he must have been presurrounding
we must have been presurrounding
you must have been presurrounding
they must have been presurrounding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't presurround
you mustn't presurround
he mustn't presurround
we mustn't presurround
you mustn't presurround
they mustn't presurround 	I mustn't be presurrounding
you mustn't be presurrounding
he mustn't be presurrounding
we mustn't be presurrounding
you mustn't be presurrounding
they mustn't be presurrounding	I mustn't have presurrounded
you mustn't have presurrounded
he mustn't have presurrounded
we mustn't have presurrounded
you mustn't have presurrounded
they mustn't have presurrounded	I mustn't have been presurrounding
you mustn't have been presurrounding
he mustn't have been presurrounding
we mustn't have been presurrounding
you mustn't have been presurrounding
they mustn't have been presurrounding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I presurround?
must you presurround?
must he presurround?
must we presurround?
must you presurround?
must they presurround? 	must I be presurrounding?
must you be presurrounding?
must he be presurrounding?
must we be presurrounding?
must you be presurrounding?
must they be presurrounding? 	must I have presurrounded?
must you have presurrounded?
must he have presurrounded?
must we have presurrounded?
must you have presurrounded?
must they have presurrounded? 	must I have been presurrounding?
must you have been presurrounding?
must he have been presurrounding?
must we have been presurrounding?
must you have been presurrounding?
must they have been presurrounding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I presurround?
mustn't you presurround?
mustn't he presurround?
mustn't we presurround?
mustn't you presurround?
mustn't they presurround? 	mustn't I be presurrounding?
mustn't you be presurrounding?
mustn't he be presurrounding?
mustn't we be presurrounding?
mustn't you be presurrounding?
mustn't they be presurrounding? 	mustn't I have presurrounded?
mustn't you have presurrounded?
mustn't he have presurrounded?
mustn't we have presurrounded?
mustn't you have presurrounded?
mustn't they have presurrounded? 	mustn't I have been presurrounding?
mustn't you have been presurrounding?
mustn't he have been presurrounding?
mustn't we have been presurrounding?
mustn't you have been presurrounding?
mustn't they have been presurrounding?