English verb conjugation
MUST PRESURROUND

Regular verb: presurround - presurrounded - presurrounded

Affirmation

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