I'd be biting you'd be biting she'd be biting we'd be biting you'd be biting they'd be biting
Perfect
I should've bitten you should've bitten she should've bitten we should've bitten you should've bitten they should've bitten
V-ing perfect
I should've been biting you should've been biting she 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 bite you shouldn't bite she shouldn't bite we shouldn't bite you shouldn't bite they shouldn't bite
V-ing form
I shouldn't be biting you shouldn't be biting she shouldn't be biting we shouldn't be biting you shouldn't be biting they shouldn't be biting
Perfect
I shouldn't have bitten you shouldn't have bitten she shouldn't have bitten we shouldn't have bitten you shouldn't have bitten they shouldn't have bitten
V-ing perfect
I shouldn't have been biting you shouldn't have been biting she 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 bite? should you bite? should she bite? should we bite? should you bite? should they bite?
V-ing form
should I be biting? should you be biting? should she be biting? should we be biting? should you be biting? should they be biting?
Perfect
should I have bitten? should you have bitten? should she have bitten? should we have bitten? should you have bitten? should they have bitten?
V-ing perfect
should I have been biting? should you have been biting? should she 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 bite? shouldn't you bite? shouldn't she bite? shouldn't we bite? shouldn't you bite? shouldn't they bite?
V-ing form
shouldn't I be biting? shouldn't you be biting? shouldn't she be biting? shouldn't we be biting? shouldn't you be biting? shouldn't they be biting?
Perfect
shouldn't I have bitten? shouldn't you have bitten? shouldn't she have bitten? shouldn't we have bitten? shouldn't you have bitten? shouldn't they have bitten?
V-ing perfect
shouldn't I have been biting? shouldn't you have been biting? shouldn't she have been biting? shouldn't we have been biting? shouldn't you have been biting? shouldn't they have been biting?