English verb conjugation
SHOULD CURD

Regular verb: curd - curded - curded

Affirmation

Simple form	V-ing form
I'd curd you'd curd he'd curd we'd curd you'd curd they'd curd	I'd be curding you'd be curding he'd be curding we'd be curding you'd be curding they'd be curding
Perfect	V-ing perfect
I should've curded you should've curded he should've curded we should've curded you should've curded they should've curded	I should've been curding you should've been curding he should've been curding we should've been curding you should've been curding they should've been curding

Negation

Simple form	V-ing form
I shouldn't curd you shouldn't curd he shouldn't curd we shouldn't curd you shouldn't curd they shouldn't curd	I shouldn't be curding you shouldn't be curding he shouldn't be curding we shouldn't be curding you shouldn't be curding they shouldn't be curding
Perfect	V-ing perfect
I shouldn't have curded you shouldn't have curded he shouldn't have curded we shouldn't have curded you shouldn't have curded they shouldn't have curded	I shouldn't have been curding you shouldn't have been curding he shouldn't have been curding we shouldn't have been curding you shouldn't have been curding they shouldn't have been curding

Interrogative form

Simple form	V-ing form
should I curd? should you curd? should he curd? should we curd? should you curd? should they curd?	should I be curding? should you be curding? should he be curding? should we be curding? should you be curding? should they be curding?
Perfect	V-ing perfect
should I have curded? should you have curded? should he have curded? should we have curded? should you have curded? should they have curded?	should I have been curding? should you have been curding? should he have been curding? should we have been curding? should you have been curding? should they have been curding?

Interro-negative form

Simple form	V-ing form
shouldn't I curd? shouldn't you curd? shouldn't he curd? shouldn't we curd? shouldn't you curd? shouldn't they curd?	shouldn't I be curding? shouldn't you be curding? shouldn't he be curding? shouldn't we be curding? shouldn't you be curding? shouldn't they be curding?
Perfect	V-ing perfect
shouldn't I have curded? shouldn't you have curded? shouldn't he have curded? shouldn't we have curded? shouldn't you have curded? shouldn't they have curded?	shouldn't I have been curding? shouldn't you have been curding? shouldn't he have been curding? shouldn't we have been curding? shouldn't you have been curding? shouldn't they have been curding?