English verb conjugation
SHOULD STUD

Regular verb: stud - studded - studded

Affirmation

Simple form	V-ing form
I'd stud you'd stud he'd stud we'd stud you'd stud they'd stud	I'd be studding you'd be studding he'd be studding we'd be studding you'd be studding they'd be studding
Perfect	V-ing perfect
I should've studded you should've studded he should've studded we should've studded you should've studded they should've studded	I should've been studding you should've been studding he should've been studding we should've been studding you should've been studding they should've been studding

Negation

Simple form	V-ing form
I shouldn't stud you shouldn't stud he shouldn't stud we shouldn't stud you shouldn't stud they shouldn't stud	I shouldn't be studding you shouldn't be studding he shouldn't be studding we shouldn't be studding you shouldn't be studding they shouldn't be studding
Perfect	V-ing perfect
I shouldn't have studded you shouldn't have studded he shouldn't have studded we shouldn't have studded you shouldn't have studded they shouldn't have studded	I shouldn't have been studding you shouldn't have been studding he shouldn't have been studding we shouldn't have been studding you shouldn't have been studding they shouldn't have been studding

Interrogative form

Simple form	V-ing form
should I stud? should you stud? should he stud? should we stud? should you stud? should they stud?	should I be studding? should you be studding? should he be studding? should we be studding? should you be studding? should they be studding?
Perfect	V-ing perfect
should I have studded? should you have studded? should he have studded? should we have studded? should you have studded? should they have studded?	should I have been studding? should you have been studding? should he have been studding? should we have been studding? should you have been studding? should they have been studding?

Interro-negative form

Simple form	V-ing form
shouldn't I stud? shouldn't you stud? shouldn't he stud? shouldn't we stud? shouldn't you stud? shouldn't they stud?	shouldn't I be studding? shouldn't you be studding? shouldn't he be studding? shouldn't we be studding? shouldn't you be studding? shouldn't they be studding?
Perfect	V-ing perfect
shouldn't I have studded? shouldn't you have studded? shouldn't he have studded? shouldn't we have studded? shouldn't you have studded? shouldn't they have studded?	shouldn't I have been studding? shouldn't you have been studding? shouldn't he have been studding? shouldn't we have been studding? shouldn't you have been studding? shouldn't they have been studding?