English verb conjugation
SHOULD CONTAMINATE

Regular verb: contaminate - contaminated - contaminated

Affirmation

Simple form	V-ing form
I'd contaminate you'd contaminate he'd contaminate we'd contaminate you'd contaminate they'd contaminate	I'd be contaminating you'd be contaminating he'd be contaminating we'd be contaminating you'd be contaminating they'd be contaminating
Perfect	V-ing perfect
I should've contaminated you should've contaminated he should've contaminated we should've contaminated you should've contaminated they should've contaminated	I should've been contaminating you should've been contaminating he should've been contaminating we should've been contaminating you should've been contaminating they should've been contaminating

Negation

Simple form	V-ing form
I shouldn't contaminate you shouldn't contaminate he shouldn't contaminate we shouldn't contaminate you shouldn't contaminate they shouldn't contaminate	I shouldn't be contaminating you shouldn't be contaminating he shouldn't be contaminating we shouldn't be contaminating you shouldn't be contaminating they shouldn't be contaminating
Perfect	V-ing perfect
I shouldn't have contaminated you shouldn't have contaminated he shouldn't have contaminated we shouldn't have contaminated you shouldn't have contaminated they shouldn't have contaminated	I shouldn't have been contaminating you shouldn't have been contaminating he shouldn't have been contaminating we shouldn't have been contaminating you shouldn't have been contaminating they shouldn't have been contaminating

Interrogative form

Simple form	V-ing form
should I contaminate? should you contaminate? should he contaminate? should we contaminate? should you contaminate? should they contaminate?	should I be contaminating? should you be contaminating? should he be contaminating? should we be contaminating? should you be contaminating? should they be contaminating?
Perfect	V-ing perfect
should I have contaminated? should you have contaminated? should he have contaminated? should we have contaminated? should you have contaminated? should they have contaminated?	should I have been contaminating? should you have been contaminating? should he have been contaminating? should we have been contaminating? should you have been contaminating? should they have been contaminating?

Interro-negative form

Simple form	V-ing form
shouldn't I contaminate? shouldn't you contaminate? shouldn't he contaminate? shouldn't we contaminate? shouldn't you contaminate? shouldn't they contaminate?	shouldn't I be contaminating? shouldn't you be contaminating? shouldn't he be contaminating? shouldn't we be contaminating? shouldn't you be contaminating? shouldn't they be contaminating?
Perfect	V-ing perfect
shouldn't I have contaminated? shouldn't you have contaminated? shouldn't he have contaminated? shouldn't we have contaminated? shouldn't you have contaminated? shouldn't they have contaminated?	shouldn't I have been contaminating? shouldn't you have been contaminating? shouldn't he have been contaminating? shouldn't we have been contaminating? shouldn't you have been contaminating? shouldn't they have been contaminating?