English verb conjugation
SHOULD KNACKER

Regular verb: knacker - knackered - knackered

Affirmation

Simple form	V-ing form
I should knacker you should knacker she should knacker we should knacker you should knacker they should knacker	I should be knackering you should be knackering she should be knackering we should be knackering you should be knackering they should be knackering
Perfect	V-ing perfect
I should have knackered you should have knackered she should have knackered we should have knackered you should have knackered they should have knackered	I should have been knackering you should have been knackering she should have been knackering we should have been knackering you should have been knackering they should have been knackering

Negation

Simple form	V-ing form
I should not knacker you should not knacker she should not knacker we should not knacker you should not knacker they should not knacker	I should not be knackering you should not be knackering she should not be knackering we should not be knackering you should not be knackering they should not be knackering
Perfect	V-ing perfect
I should not have knackered you should not have knackered she should not have knackered we should not have knackered you should not have knackered they should not have knackered	I should not have been knackering you should not have been knackering she should not have been knackering we should not have been knackering you should not have been knackering they should not have been knackering

Interrogative form

Simple form	V-ing form
should I knacker? should you knacker? should she knacker? should we knacker? should you knacker? should they knacker?	should I be knackering? should you be knackering? should she be knackering? should we be knackering? should you be knackering? should they be knackering?
Perfect	V-ing perfect
should I have knackered? should you have knackered? should she have knackered? should we have knackered? should you have knackered? should they have knackered?	should I have been knackering? should you have been knackering? should she have been knackering? should we have been knackering? should you have been knackering? should they have been knackering?

Interro-negative form

Simple form	V-ing form
should I not knacker? should you not knacker? should she not knacker? should we not knacker? should you not knacker? should they not knacker?	should I not be knackering? should you not be knackering? should she not be knackering? should we not be knackering? should you not be knackering? should they not be knackering?
Perfect	V-ing perfect
should I not have knackered? should you not have knackered? should she not have knackered? should we not have knackered? should you not have knackered? should they not have knackered?	should I not have been knackering? should you not have been knackering? should she not have been knackering? should we not have been knackering? should you not have been knackering? should they not have been knackering?