English verb conjugation
SHOULD PREWORK

Regular verb: prework - preworked - preworked

Affirmation

Simple form	V-ing form
I'd prework you'd prework he'd prework we'd prework you'd prework they'd prework	I'd be preworking you'd be preworking he'd be preworking we'd be preworking you'd be preworking they'd be preworking
Perfect	V-ing perfect
I should've preworked you should've preworked he should've preworked we should've preworked you should've preworked they should've preworked	I should've been preworking you should've been preworking he should've been preworking we should've been preworking you should've been preworking they should've been preworking

Negation

Simple form	V-ing form
I shouldn't prework you shouldn't prework he shouldn't prework we shouldn't prework you shouldn't prework they shouldn't prework	I shouldn't be preworking you shouldn't be preworking he shouldn't be preworking we shouldn't be preworking you shouldn't be preworking they shouldn't be preworking
Perfect	V-ing perfect
I shouldn't have preworked you shouldn't have preworked he shouldn't have preworked we shouldn't have preworked you shouldn't have preworked they shouldn't have preworked	I shouldn't have been preworking you shouldn't have been preworking he shouldn't have been preworking we shouldn't have been preworking you shouldn't have been preworking they shouldn't have been preworking

Interrogative form

Simple form	V-ing form
should I prework? should you prework? should he prework? should we prework? should you prework? should they prework?	should I be preworking? should you be preworking? should he be preworking? should we be preworking? should you be preworking? should they be preworking?
Perfect	V-ing perfect
should I have preworked? should you have preworked? should he have preworked? should we have preworked? should you have preworked? should they have preworked?	should I have been preworking? should you have been preworking? should he have been preworking? should we have been preworking? should you have been preworking? should they have been preworking?

Interro-negative form

Simple form	V-ing form
shouldn't I prework? shouldn't you prework? shouldn't he prework? shouldn't we prework? shouldn't you prework? shouldn't they prework?	shouldn't I be preworking? shouldn't you be preworking? shouldn't he be preworking? shouldn't we be preworking? shouldn't you be preworking? shouldn't they be preworking?
Perfect	V-ing perfect
shouldn't I have preworked? shouldn't you have preworked? shouldn't he have preworked? shouldn't we have preworked? shouldn't you have preworked? shouldn't they have preworked?	shouldn't I have been preworking? shouldn't you have been preworking? shouldn't he have been preworking? shouldn't we have been preworking? shouldn't you have been preworking? shouldn't they have been preworking?