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