must presurround
Regular verb: presurround - presurrounded- presurrounded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not presurround
you must not presurround
he must not presurround
we must not presurround
you must not presurround
they must not presurround 	I must not be presurrounding
you must not be presurrounding
he must not be presurrounding
we must not be presurrounding
you must not be presurrounding
they must not be presurrounding	I must not have presurrounded
you must not have presurrounded
he must not have presurrounded
we must not have presurrounded
you must not have presurrounded
they must not have presurrounded	I must not have been presurrounding
you must not have been presurrounding
he must not have been presurrounding
we must not have been presurrounding
you must not have been presurrounding
they must not have been presurrounding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not presurround?
must you not presurround?
must he not presurround?
must we not presurround?
must you not presurround?
must they not presurround? 	must I not be presurrounding?
must you not be presurrounding?
must he not be presurrounding?
must we not be presurrounding?
must you not be presurrounding?
must they not be presurrounding? 	must I not have presurrounded?
must you not have presurrounded?
must he not have presurrounded?
must we not have presurrounded?
must you not have presurrounded?
must they not have presurrounded? 	must I not have been presurrounding?
must you not have been presurrounding?
must he not have been presurrounding?
must we not have been presurrounding?
must you not have been presurrounding?
must they not have been presurrounding?