English verb conjugation
SHOULD PEN

Regular verb: pen - penned - penned

Affirmation

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

Negation

Simple form	V-ing form
I should not pen you should not pen she should not pen we should not pen you should not pen they should not pen	I should not be penning you should not be penning she should not be penning we should not be penning you should not be penning they should not be penning
Perfect	V-ing perfect
I should not have penned you should not have penned she should not have penned we should not have penned you should not have penned they should not have penned	I should not have been penning you should not have been penning she should not have been penning we should not have been penning you should not have been penning they should not 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
should I not pen? should you not pen? should she not pen? should we not pen? should you not pen? should they not pen?	should I not be penning? should you not be penning? should she not be penning? should we not be penning? should you not be penning? should they not be penning?
Perfect	V-ing perfect
should I not have penned? should you not have penned? should she not have penned? should we not have penned? should you not have penned? should they not have penned?	should I not have been penning? should you not have been penning? should she not have been penning? should we not have been penning? should you not have been penning? should they not have been penning?