English verb conjugation
MUST SUBMERSE

Regular verb: submerse - submersed - submersed

Affirmation

Simple form	V-ing form
I must submerse you must submerse he must submerse we must submerse you must submerse they must submerse	I must be submersing you must be submersing he must be submersing we must be submersing you must be submersing they must be submersing
Perfect	V-ing perfect
I must have submersed you must have submersed he must have submersed we must have submersed you must have submersed they must have submersed	I must have been submersing you must have been submersing he must have been submersing we must have been submersing you must have been submersing they must have been submersing

Negation

Simple form	V-ing form
I must not submerse you must not submerse he must not submerse we must not submerse you must not submerse they must not submerse	I must not be submersing you must not be submersing he must not be submersing we must not be submersing you must not be submersing they must not be submersing
Perfect	V-ing perfect
I must not have submersed you must not have submersed he must not have submersed we must not have submersed you must not have submersed they must not have submersed	I must not have been submersing you must not have been submersing he must not have been submersing we must not have been submersing you must not have been submersing they must not have been submersing

Interrogative form

Simple form	V-ing form
must I submerse? must you submerse? must he submerse? must we submerse? must you submerse? must they submerse?	must I be submersing? must you be submersing? must he be submersing? must we be submersing? must you be submersing? must they be submersing?
Perfect	V-ing perfect
must I have submersed? must you have submersed? must he have submersed? must we have submersed? must you have submersed? must they have submersed?	must I have been submersing? must you have been submersing? must he have been submersing? must we have been submersing? must you have been submersing? must they have been submersing?

Interro-negative form

Simple form	V-ing form
must I not submerse? must you not submerse? must he not submerse? must we not submerse? must you not submerse? must they not submerse?	must I not be submersing? must you not be submersing? must he not be submersing? must we not be submersing? must you not be submersing? must they not be submersing?
Perfect	V-ing perfect
must I not have submersed? must you not have submersed? must he not have submersed? must we not have submersed? must you not have submersed? must they not have submersed?	must I not have been submersing? must you not have been submersing? must he not have been submersing? must we not have been submersing? must you not have been submersing? must they not have been submersing?