I'd be submersing you'd be submersing he'd be submersing we'd be submersing you'd be submersing they'd be submersing
Perfect
I should've submersed you should've submersed he should've submersed we should've submersed you should've submersed they should've submersed
V-ing perfect
I should've been submersing you should've been submersing he should've been submersing we should've been submersing you should've been submersing they should've been submersing
Negation
Simple form
I shouldn't submerse you shouldn't submerse he shouldn't submerse we shouldn't submerse you shouldn't submerse they shouldn't submerse
V-ing form
I shouldn't be submersing you shouldn't be submersing he shouldn't be submersing we shouldn't be submersing you shouldn't be submersing they shouldn't be submersing
Perfect
I shouldn't have submersed you shouldn't have submersed he shouldn't have submersed we shouldn't have submersed you shouldn't have submersed they shouldn't have submersed
V-ing perfect
I shouldn't have been submersing you shouldn't have been submersing he shouldn't have been submersing we shouldn't have been submersing you shouldn't have been submersing they shouldn't have been submersing
Interrogative form
Simple form
should I submerse? should you submerse? should he submerse? should we submerse? should you submerse? should they submerse?
V-ing form
should I be submersing? should you be submersing? should he be submersing? should we be submersing? should you be submersing? should they be submersing?
Perfect
should I have submersed? should you have submersed? should he have submersed? should we have submersed? should you have submersed? should they have submersed?
V-ing perfect
should I have been submersing? should you have been submersing? should he have been submersing? should we have been submersing? should you have been submersing? should they have been submersing?
Interro-negative form
Simple form
shouldn't I submerse? shouldn't you submerse? shouldn't he submerse? shouldn't we submerse? shouldn't you submerse? shouldn't they submerse?
V-ing form
shouldn't I be submersing? shouldn't you be submersing? shouldn't he be submersing? shouldn't we be submersing? shouldn't you be submersing? shouldn't they be submersing?
Perfect
shouldn't I have submersed? shouldn't you have submersed? shouldn't he have submersed? shouldn't we have submersed? shouldn't you have submersed? shouldn't they have submersed?
V-ing perfect
shouldn't I have been submersing? shouldn't you have been submersing? shouldn't he have been submersing? shouldn't we have been submersing? shouldn't you have been submersing? shouldn't they have been submersing?