English verb conjugation
SHOULD TEST

Regular verb: test - tested - tested

Affirmation

Simple form	V-ing form
I'd test you'd test she'd test we'd test you'd test they'd test	I'd be testing you'd be testing she'd be testing we'd be testing you'd be testing they'd be testing
Perfect	V-ing perfect
I should've tested you should've tested she should've tested we should've tested you should've tested they should've tested	I should've been testing you should've been testing she should've been testing we should've been testing you should've been testing they should've been testing

Negation

Simple form	V-ing form
I shouldn't test you shouldn't test she shouldn't test we shouldn't test you shouldn't test they shouldn't test	I shouldn't be testing you shouldn't be testing she shouldn't be testing we shouldn't be testing you shouldn't be testing they shouldn't be testing
Perfect	V-ing perfect
I shouldn't have tested you shouldn't have tested she shouldn't have tested we shouldn't have tested you shouldn't have tested they shouldn't have tested	I shouldn't have been testing you shouldn't have been testing she shouldn't have been testing we shouldn't have been testing you shouldn't have been testing they shouldn't have been testing

Interrogative form

Simple form	V-ing form
should I test? should you test? should she test? should we test? should you test? should they test?	should I be testing? should you be testing? should she be testing? should we be testing? should you be testing? should they be testing?
Perfect	V-ing perfect
should I have tested? should you have tested? should she have tested? should we have tested? should you have tested? should they have tested?	should I have been testing? should you have been testing? should she have been testing? should we have been testing? should you have been testing? should they have been testing?

Interro-negative form

Simple form	V-ing form
shouldn't I test? shouldn't you test? shouldn't she test? shouldn't we test? shouldn't you test? shouldn't they test?	shouldn't I be testing? shouldn't you be testing? shouldn't she be testing? shouldn't we be testing? shouldn't you be testing? shouldn't they be testing?
Perfect	V-ing perfect
shouldn't I have tested? shouldn't you have tested? shouldn't she have tested? shouldn't we have tested? shouldn't you have tested? shouldn't they have tested?	shouldn't I have been testing? shouldn't you have been testing? shouldn't she have been testing? shouldn't we have been testing? shouldn't you have been testing? shouldn't they have been testing?