English verb conjugation
SHOULD PIN

Regular verb: pin - pinned - pinned

Affirmation

Simple form	V-ing form
I'd pin you'd pin he'd pin we'd pin you'd pin they'd pin	I'd be pinning you'd be pinning he'd be pinning we'd be pinning you'd be pinning they'd be pinning
Perfect	V-ing perfect
I should've pinned you should've pinned he should've pinned we should've pinned you should've pinned they should've pinned	I should've been pinning you should've been pinning he should've been pinning we should've been pinning you should've been pinning they should've been pinning

Negation

Simple form	V-ing form
I shouldn't pin you shouldn't pin he shouldn't pin we shouldn't pin you shouldn't pin they shouldn't pin	I shouldn't be pinning you shouldn't be pinning he shouldn't be pinning we shouldn't be pinning you shouldn't be pinning they shouldn't be pinning
Perfect	V-ing perfect
I shouldn't have pinned you shouldn't have pinned he shouldn't have pinned we shouldn't have pinned you shouldn't have pinned they shouldn't have pinned	I shouldn't have been pinning you shouldn't have been pinning he shouldn't have been pinning we shouldn't have been pinning you shouldn't have been pinning they shouldn't have been pinning

Interrogative form

Simple form	V-ing form
should I pin? should you pin? should he pin? should we pin? should you pin? should they pin?	should I be pinning? should you be pinning? should he be pinning? should we be pinning? should you be pinning? should they be pinning?
Perfect	V-ing perfect
should I have pinned? should you have pinned? should he have pinned? should we have pinned? should you have pinned? should they have pinned?	should I have been pinning? should you have been pinning? should he have been pinning? should we have been pinning? should you have been pinning? should they have been pinning?

Interro-negative form

Simple form	V-ing form
shouldn't I pin? shouldn't you pin? shouldn't he pin? shouldn't we pin? shouldn't you pin? shouldn't they pin?	shouldn't I be pinning? shouldn't you be pinning? shouldn't he be pinning? shouldn't we be pinning? shouldn't you be pinning? shouldn't they be pinning?
Perfect	V-ing perfect
shouldn't I have pinned? shouldn't you have pinned? shouldn't he have pinned? shouldn't we have pinned? shouldn't you have pinned? shouldn't they have pinned?	shouldn't I have been pinning? shouldn't you have been pinning? shouldn't he have been pinning? shouldn't we have been pinning? shouldn't you have been pinning? shouldn't they have been pinning?