English verb conjugation
SHOULD PEN

Regular verb: pen - penned - penned

Affirmation

Simple form	V-ing form
I'd pen you'd pen she'd pen we'd pen you'd pen they'd pen	I'd be penning you'd be penning she'd be penning we'd be penning you'd be penning they'd be penning
Perfect	V-ing perfect
I should've penned you should've penned she should've penned we should've penned you should've penned they should've penned	I should've been penning you should've been penning she should've been penning we should've been penning you should've been penning they should've been penning

Negation

Simple form	V-ing form
I shouldn't pen you shouldn't pen she shouldn't pen we shouldn't pen you shouldn't pen they shouldn't pen	I shouldn't be penning you shouldn't be penning she shouldn't be penning we shouldn't be penning you shouldn't be penning they shouldn't be penning
Perfect	V-ing perfect
I shouldn't have penned you shouldn't have penned she shouldn't have penned we shouldn't have penned you shouldn't have penned they shouldn't have penned	I shouldn't have been penning you shouldn't have been penning she shouldn't have been penning we shouldn't have been penning you shouldn't have been penning they shouldn't have been penning

Interrogative form

Simple form	V-ing form
should I pen? should you pen? should she pen? should we pen? should you pen? should they pen?	should I be penning? should you be penning? should she be penning? should we be penning? should you be penning? should they be penning?
Perfect	V-ing perfect
should I have penned? should you have penned? should she have penned? should we have penned? should you have penned? should they have penned?	should I have been penning? should you have been penning? should she have been penning? should we have been penning? should you have been penning? should they have been penning?

Interro-negative form

Simple form	V-ing form
shouldn't I pen? shouldn't you pen? shouldn't she pen? shouldn't we pen? shouldn't you pen? shouldn't they pen?	shouldn't I be penning? shouldn't you be penning? shouldn't she be penning? shouldn't we be penning? shouldn't you be penning? shouldn't they be penning?
Perfect	V-ing perfect
shouldn't I have penned? shouldn't you have penned? shouldn't she have penned? shouldn't we have penned? shouldn't you have penned? shouldn't they have penned?	shouldn't I have been penning? shouldn't you have been penning? shouldn't she have been penning? shouldn't we have been penning? shouldn't you have been penning? shouldn't they have been penning?