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 mustn't submerse you mustn't submerse he mustn't submerse we mustn't submerse you mustn't submerse they mustn't submerse	I mustn't be submersing you mustn't be submersing he mustn't be submersing we mustn't be submersing you mustn't be submersing they mustn't be submersing
Perfect	V-ing perfect
I mustn't have submersed you mustn't have submersed he mustn't have submersed we mustn't have submersed you mustn't have submersed they mustn't have submersed	I mustn't have been submersing you mustn't have been submersing he mustn't have been submersing we mustn't have been submersing you mustn't have been submersing they mustn't 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
mustn't I submerse? mustn't you submerse? mustn't he submerse? mustn't we submerse? mustn't you submerse? mustn't they submerse?	mustn't I be submersing? mustn't you be submersing? mustn't he be submersing? mustn't we be submersing? mustn't you be submersing? mustn't they be submersing?
Perfect	V-ing perfect
mustn't I have submersed? mustn't you have submersed? mustn't he have submersed? mustn't we have submersed? mustn't you have submersed? mustn't they have submersed?	mustn't I have been submersing? mustn't you have been submersing? mustn't he have been submersing? mustn't we have been submersing? mustn't you have been submersing? mustn't they have been submersing?