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