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