English verb conjugation
SHOULD OPEN

Regular verb: open - opened - opened

Affirmation

Simple form	V-ing form
I'd open you'd open he'd open we'd open you'd open they'd open	I'd be opening you'd be opening he'd be opening we'd be opening you'd be opening they'd be opening
Perfect	V-ing perfect
I should've opened you should've opened he should've opened we should've opened you should've opened they should've opened	I should've been opening you should've been opening he should've been opening we should've been opening you should've been opening they should've been opening

Negation

Simple form	V-ing form
I shouldn't open you shouldn't open he shouldn't open we shouldn't open you shouldn't open they shouldn't open	I shouldn't be opening you shouldn't be opening he shouldn't be opening we shouldn't be opening you shouldn't be opening they shouldn't be opening
Perfect	V-ing perfect
I shouldn't have opened you shouldn't have opened he shouldn't have opened we shouldn't have opened you shouldn't have opened they shouldn't have opened	I shouldn't have been opening you shouldn't have been opening he shouldn't have been opening we shouldn't have been opening you shouldn't have been opening they shouldn't have been opening

Interrogative form

Simple form	V-ing form
should I open? should you open? should he open? should we open? should you open? should they open?	should I be opening? should you be opening? should he be opening? should we be opening? should you be opening? should they be opening?
Perfect	V-ing perfect
should I have opened? should you have opened? should he have opened? should we have opened? should you have opened? should they have opened?	should I have been opening? should you have been opening? should he have been opening? should we have been opening? should you have been opening? should they have been opening?

Interro-negative form

Simple form	V-ing form
shouldn't I open? shouldn't you open? shouldn't he open? shouldn't we open? shouldn't you open? shouldn't they open?	shouldn't I be opening? shouldn't you be opening? shouldn't he be opening? shouldn't we be opening? shouldn't you be opening? shouldn't they be opening?
Perfect	V-ing perfect
shouldn't I have opened? shouldn't you have opened? shouldn't he have opened? shouldn't we have opened? shouldn't you have opened? shouldn't they have opened?	shouldn't I have been opening? shouldn't you have been opening? shouldn't he have been opening? shouldn't we have been opening? shouldn't you have been opening? shouldn't they have been opening?