I'd be companioning you'd be companioning she'd be companioning we'd be companioning you'd be companioning they'd be companioning
Perfect
I should've companioned you should've companioned she should've companioned we should've companioned you should've companioned they should've companioned
V-ing perfect
I should've been companioning you should've been companioning she should've been companioning we should've been companioning you should've been companioning they should've been companioning
Negation
Simple form
I shouldn't companion you shouldn't companion she shouldn't companion we shouldn't companion you shouldn't companion they shouldn't companion
V-ing form
I shouldn't be companioning you shouldn't be companioning she shouldn't be companioning we shouldn't be companioning you shouldn't be companioning they shouldn't be companioning
Perfect
I shouldn't have companioned you shouldn't have companioned she shouldn't have companioned we shouldn't have companioned you shouldn't have companioned they shouldn't have companioned
V-ing perfect
I shouldn't have been companioning you shouldn't have been companioning she shouldn't have been companioning we shouldn't have been companioning you shouldn't have been companioning they shouldn't have been companioning
Interrogative form
Simple form
should I companion? should you companion? should she companion? should we companion? should you companion? should they companion?
V-ing form
should I be companioning? should you be companioning? should she be companioning? should we be companioning? should you be companioning? should they be companioning?
Perfect
should I have companioned? should you have companioned? should she have companioned? should we have companioned? should you have companioned? should they have companioned?
V-ing perfect
should I have been companioning? should you have been companioning? should she have been companioning? should we have been companioning? should you have been companioning? should they have been companioning?
Interro-negative form
Simple form
shouldn't I companion? shouldn't you companion? shouldn't she companion? shouldn't we companion? shouldn't you companion? shouldn't they companion?
V-ing form
shouldn't I be companioning? shouldn't you be companioning? shouldn't she be companioning? shouldn't we be companioning? shouldn't you be companioning? shouldn't they be companioning?
Perfect
shouldn't I have companioned? shouldn't you have companioned? shouldn't she have companioned? shouldn't we have companioned? shouldn't you have companioned? shouldn't they have companioned?
V-ing perfect
shouldn't I have been companioning? shouldn't you have been companioning? shouldn't she have been companioning? shouldn't we have been companioning? shouldn't you have been companioning? shouldn't they have been companioning?