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