English verb conjugation
SHOULD CASE

Regular verb: case - cased - cased

Affirmation

Simple form	V-ing form
I'd case you'd case she'd case we'd case you'd case they'd case	I'd be casing you'd be casing she'd be casing we'd be casing you'd be casing they'd be casing
Perfect	V-ing perfect
I should've cased you should've cased she should've cased we should've cased you should've cased they should've cased	I should've been casing you should've been casing she should've been casing we should've been casing you should've been casing they should've been casing

Negation

Simple form	V-ing form
I shouldn't case you shouldn't case she shouldn't case we shouldn't case you shouldn't case they shouldn't case	I shouldn't be casing you shouldn't be casing she shouldn't be casing we shouldn't be casing you shouldn't be casing they shouldn't be casing
Perfect	V-ing perfect
I shouldn't have cased you shouldn't have cased she shouldn't have cased we shouldn't have cased you shouldn't have cased they shouldn't have cased	I shouldn't have been casing you shouldn't have been casing she shouldn't have been casing we shouldn't have been casing you shouldn't have been casing they shouldn't have been casing

Interrogative form

Simple form	V-ing form
should I case? should you case? should she case? should we case? should you case? should they case?	should I be casing? should you be casing? should she be casing? should we be casing? should you be casing? should they be casing?
Perfect	V-ing perfect
should I have cased? should you have cased? should she have cased? should we have cased? should you have cased? should they have cased?	should I have been casing? should you have been casing? should she have been casing? should we have been casing? should you have been casing? should they have been casing?

Interro-negative form

Simple form	V-ing form
shouldn't I case? shouldn't you case? shouldn't she case? shouldn't we case? shouldn't you case? shouldn't they case?	shouldn't I be casing? shouldn't you be casing? shouldn't she be casing? shouldn't we be casing? shouldn't you be casing? shouldn't they be casing?
Perfect	V-ing perfect
shouldn't I have cased? shouldn't you have cased? shouldn't she have cased? shouldn't we have cased? shouldn't you have cased? shouldn't they have cased?	shouldn't I have been casing? shouldn't you have been casing? shouldn't she have been casing? shouldn't we have been casing? shouldn't you have been casing? shouldn't they have been casing?