should firm
Verbe régulier : firm - firmed- firmed
Traduction française : tasser - se raffermir 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I'd firm
you'd firm
she'd firm
we'd firm
you'd firm
they'd firm 	I'd be firming
you'd be firming
she'd be firming
we'd be firming
you'd be firming
they'd be firming	I should've firmed
you should've firmed
she should've firmed
we should've firmed
you should've firmed
they should've firmed	I should've been firming
you should've been firming
she should've been firming
we should've been firming
you should've been firming
they should've been firming	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I shouldn't firm
you shouldn't firm
she shouldn't firm
we shouldn't firm
you shouldn't firm
they shouldn't firm 	I shouldn't be firming
you shouldn't be firming
she shouldn't be firming
we shouldn't be firming
you shouldn't be firming
they shouldn't be firming	I shouldn't have firmed
you shouldn't have firmed
she shouldn't have firmed
we shouldn't have firmed
you shouldn't have firmed
they shouldn't have firmed	I shouldn't have been firming
you shouldn't have been firming
she shouldn't have been firming
we shouldn't have been firming
you shouldn't have been firming
they shouldn't have been firming	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
should I firm?
should you firm?
should she firm?
should we firm?
should you firm?
should they firm? 	should I be firming?
should you be firming?
should she be firming?
should we be firming?
should you be firming?
should they be firming? 	should I have firmed?
should you have firmed?
should she have firmed?
should we have firmed?
should you have firmed?
should they have firmed? 	should I have been firming?
should you have been firming?
should she have been firming?
should we have been firming?
should you have been firming?
should they have been firming? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
shouldn't I firm?
shouldn't you firm?
shouldn't she firm?
shouldn't we firm?
shouldn't you firm?
shouldn't they firm? 	shouldn't I be firming?
shouldn't you be firming?
shouldn't she be firming?
shouldn't we be firming?
shouldn't you be firming?
shouldn't they be firming? 	shouldn't I have firmed?
shouldn't you have firmed?
shouldn't she have firmed?
shouldn't we have firmed?
shouldn't you have firmed?
shouldn't they have firmed? 	shouldn't I have been firming?
shouldn't you have been firming?
shouldn't she have been firming?
shouldn't we have been firming?
shouldn't you have been firming?
shouldn't they have been firming?