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