should open
Regular verb: open - opened- opened

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