should knacker
Verbo regular: knacker - knackered- knackered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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	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	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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	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	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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? 	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? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
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? 	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?