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