should biff
Verbe régulier : biff - biffed- biffed
Traduction française : flanquer un coup de poing à 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I'd biff
you'd biff
he'd biff
we'd biff
you'd biff
they'd biff 	I'd be biffing
you'd be biffing
he'd be biffing
we'd be biffing
you'd be biffing
they'd be biffing	I should've biffed
you should've biffed
he should've biffed
we should've biffed
you should've biffed
they should've biffed	I should've been biffing
you should've been biffing
he should've been biffing
we should've been biffing
you should've been biffing
they should've been biffing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I shouldn't biff
you shouldn't biff
he shouldn't biff
we shouldn't biff
you shouldn't biff
they shouldn't biff 	I shouldn't be biffing
you shouldn't be biffing
he shouldn't be biffing
we shouldn't be biffing
you shouldn't be biffing
they shouldn't be biffing	I shouldn't have biffed
you shouldn't have biffed
he shouldn't have biffed
we shouldn't have biffed
you shouldn't have biffed
they shouldn't have biffed	I shouldn't have been biffing
you shouldn't have been biffing
he shouldn't have been biffing
we shouldn't have been biffing
you shouldn't have been biffing
they shouldn't have been biffing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
should I biff?
should you biff?
should he biff?
should we biff?
should you biff?
should they biff? 	should I be biffing?
should you be biffing?
should he be biffing?
should we be biffing?
should you be biffing?
should they be biffing? 	should I have biffed?
should you have biffed?
should he have biffed?
should we have biffed?
should you have biffed?
should they have biffed? 	should I have been biffing?
should you have been biffing?
should he have been biffing?
should we have been biffing?
should you have been biffing?
should they have been biffing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
shouldn't I biff?
shouldn't you biff?
shouldn't he biff?
shouldn't we biff?
shouldn't you biff?
shouldn't they biff? 	shouldn't I be biffing?
shouldn't you be biffing?
shouldn't he be biffing?
shouldn't we be biffing?
shouldn't you be biffing?
shouldn't they be biffing? 	shouldn't I have biffed?
shouldn't you have biffed?
shouldn't he have biffed?
shouldn't we have biffed?
shouldn't you have biffed?
shouldn't they have biffed? 	shouldn't I have been biffing?
shouldn't you have been biffing?
shouldn't he have been biffing?
shouldn't we have been biffing?
shouldn't you have been biffing?
shouldn't they have been biffing?