English verb conjugation
SHOULD PERK

Regular verb: perk - perked - perked

Affirmation

Simple form	V-ing form
I'd perk you'd perk he'd perk we'd perk you'd perk they'd perk	I'd be perking you'd be perking he'd be perking we'd be perking you'd be perking they'd be perking
Perfect	V-ing perfect
I should've perked you should've perked he should've perked we should've perked you should've perked they should've perked	I should've been perking you should've been perking he should've been perking we should've been perking you should've been perking they should've been perking

Negation

Simple form	V-ing form
I shouldn't perk you shouldn't perk he shouldn't perk we shouldn't perk you shouldn't perk they shouldn't perk	I shouldn't be perking you shouldn't be perking he shouldn't be perking we shouldn't be perking you shouldn't be perking they shouldn't be perking
Perfect	V-ing perfect
I shouldn't have perked you shouldn't have perked he shouldn't have perked we shouldn't have perked you shouldn't have perked they shouldn't have perked	I shouldn't have been perking you shouldn't have been perking he shouldn't have been perking we shouldn't have been perking you shouldn't have been perking they shouldn't have been perking

Interrogative form

Simple form	V-ing form
should I perk? should you perk? should he perk? should we perk? should you perk? should they perk?	should I be perking? should you be perking? should he be perking? should we be perking? should you be perking? should they be perking?
Perfect	V-ing perfect
should I have perked? should you have perked? should he have perked? should we have perked? should you have perked? should they have perked?	should I have been perking? should you have been perking? should he have been perking? should we have been perking? should you have been perking? should they have been perking?

Interro-negative form

Simple form	V-ing form
shouldn't I perk? shouldn't you perk? shouldn't he perk? shouldn't we perk? shouldn't you perk? shouldn't they perk?	shouldn't I be perking? shouldn't you be perking? shouldn't he be perking? shouldn't we be perking? shouldn't you be perking? shouldn't they be perking?
Perfect	V-ing perfect
shouldn't I have perked? shouldn't you have perked? shouldn't he have perked? shouldn't we have perked? shouldn't you have perked? shouldn't they have perked?	shouldn't I have been perking? shouldn't you have been perking? shouldn't he have been perking? shouldn't we have been perking? shouldn't you have been perking? shouldn't they have been perking?