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