should refer
Verbe régulier : refer - referred- referred
Traduction française : soumettre - refuser 

Affirmation 	
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I'd refer
you'd refer
he'd refer
we'd refer
you'd refer
they'd refer 	I'd be referring
you'd be referring
he'd be referring
we'd be referring
you'd be referring
they'd be referring	I should've referred
you should've referred
he should've referred
we should've referred
you should've referred
they should've referred	I should've been referring
you should've been referring
he should've been referring
we should've been referring
you should've been referring
they should've been referring	

Négation 	
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I shouldn't refer
you shouldn't refer
he shouldn't refer
we shouldn't refer
you shouldn't refer
they shouldn't refer 	I shouldn't be referring
you shouldn't be referring
he shouldn't be referring
we shouldn't be referring
you shouldn't be referring
they shouldn't be referring	I shouldn't have referred
you shouldn't have referred
he shouldn't have referred
we shouldn't have referred
you shouldn't have referred
they shouldn't have referred	I shouldn't have been referring
you shouldn't have been referring
he shouldn't have been referring
we shouldn't have been referring
you shouldn't have been referring
they shouldn't have been referring	

Forme interrogative 	
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should I refer?
should you refer?
should he refer?
should we refer?
should you refer?
should they refer? 	should I be referring?
should you be referring?
should he be referring?
should we be referring?
should you be referring?
should they be referring? 	should I have referred?
should you have referred?
should he have referred?
should we have referred?
should you have referred?
should they have referred? 	should I have been referring?
should you have been referring?
should he have been referring?
should we have been referring?
should you have been referring?
should they have been referring? 	

Forme interro-négative 	
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shouldn't I refer?
shouldn't you refer?
shouldn't he refer?
shouldn't we refer?
shouldn't you refer?
shouldn't they refer? 	shouldn't I be referring?
shouldn't you be referring?
shouldn't he be referring?
shouldn't we be referring?
shouldn't you be referring?
shouldn't they be referring? 	shouldn't I have referred?
shouldn't you have referred?
shouldn't he have referred?
shouldn't we have referred?
shouldn't you have referred?
shouldn't they have referred? 	shouldn't I have been referring?
shouldn't you have been referring?
shouldn't he have been referring?
shouldn't we have been referring?
shouldn't you have been referring?
shouldn't they have been referring?