English verb conjugation
SHOULD PI

Regular verb: pi - pied - pied

Affirmation

Simple form	V-ing form
I'd pi you'd pi he'd pi we'd pi you'd pi they'd pi	I'd be piing you'd be piing he'd be piing we'd be piing you'd be piing they'd be piing
Perfect	V-ing perfect
I should've pied you should've pied he should've pied we should've pied you should've pied they should've pied	I should've been piing you should've been piing he should've been piing we should've been piing you should've been piing they should've been piing

Negation

Simple form	V-ing form
I shouldn't pi you shouldn't pi he shouldn't pi we shouldn't pi you shouldn't pi they shouldn't pi	I shouldn't be piing you shouldn't be piing he shouldn't be piing we shouldn't be piing you shouldn't be piing they shouldn't be piing
Perfect	V-ing perfect
I shouldn't have pied you shouldn't have pied he shouldn't have pied we shouldn't have pied you shouldn't have pied they shouldn't have pied	I shouldn't have been piing you shouldn't have been piing he shouldn't have been piing we shouldn't have been piing you shouldn't have been piing they shouldn't have been piing

Interrogative form

Simple form	V-ing form
should I pi? should you pi? should he pi? should we pi? should you pi? should they pi?	should I be piing? should you be piing? should he be piing? should we be piing? should you be piing? should they be piing?
Perfect	V-ing perfect
should I have pied? should you have pied? should he have pied? should we have pied? should you have pied? should they have pied?	should I have been piing? should you have been piing? should he have been piing? should we have been piing? should you have been piing? should they have been piing?

Interro-negative form

Simple form	V-ing form
shouldn't I pi? shouldn't you pi? shouldn't he pi? shouldn't we pi? shouldn't you pi? shouldn't they pi?	shouldn't I be piing? shouldn't you be piing? shouldn't he be piing? shouldn't we be piing? shouldn't you be piing? shouldn't they be piing?
Perfect	V-ing perfect
shouldn't I have pied? shouldn't you have pied? shouldn't he have pied? shouldn't we have pied? shouldn't you have pied? shouldn't they have pied?	shouldn't I have been piing? shouldn't you have been piing? shouldn't he have been piing? shouldn't we have been piing? shouldn't you have been piing? shouldn't they have been piing?