could persevere persevere
Verbe régulier : persevere persevere - persevere persevered- persevere persevered

, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could persevere persevere
you could persevere persevere
she could persevere persevere
we could persevere persevere
you could persevere persevere
they could persevere persevere 	I could be persevere persevering
you could be persevere persevering
she could be persevere persevering
we could be persevere persevering
you could be persevere persevering
they could be persevere persevering	I could have persevere persevered
you could have persevere persevered
she could have persevere persevered
we could have persevere persevered
you could have persevere persevered
they could have persevere persevered	I could have been persevere persevering
you could have been persevere persevering
she could have been persevere persevering
we could have been persevere persevering
you could have been persevere persevering
they could have been persevere persevering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't persevere persevere
you couldn't persevere persevere
she couldn't persevere persevere
we couldn't persevere persevere
you couldn't persevere persevere
they couldn't persevere persevere 	I couldn't be persevere persevering
you couldn't be persevere persevering
she couldn't be persevere persevering
we couldn't be persevere persevering
you couldn't be persevere persevering
they couldn't be persevere persevering	I couldn't have persevere persevered
you couldn't have persevere persevered
she couldn't have persevere persevered
we couldn't have persevere persevered
you couldn't have persevere persevered
they couldn't have persevere persevered	I couldn't have been persevere persevering
you couldn't have been persevere persevering
she couldn't have been persevere persevering
we couldn't have been persevere persevering
you couldn't have been persevere persevering
they couldn't have been persevere persevering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I persevere persevere?
could you persevere persevere?
could she persevere persevere?
could we persevere persevere?
could you persevere persevere?
could they persevere persevere? 	could I be persevere persevering?
could you be persevere persevering?
could she be persevere persevering?
could we be persevere persevering?
could you be persevere persevering?
could they be persevere persevering? 	could I have persevere persevered?
could you have persevere persevered?
could she have persevere persevered?
could we have persevere persevered?
could you have persevere persevered?
could they have persevere persevered? 	could I have been persevere persevering?
could you have been persevere persevering?
could she have been persevere persevering?
could we have been persevere persevering?
could you have been persevere persevering?
could they have been persevere persevering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I persevere persevere?
couldn't you persevere persevere?
couldn't she persevere persevere?
couldn't we persevere persevere?
couldn't you persevere persevere?
couldn't they persevere persevere? 	couldn't I be persevere persevering?
couldn't you be persevere persevering?
couldn't she be persevere persevering?
couldn't we be persevere persevering?
couldn't you be persevere persevering?
couldn't they be persevere persevering? 	couldn't I have persevere persevered?
couldn't you have persevere persevered?
couldn't she have persevere persevered?
couldn't we have persevere persevered?
couldn't you have persevere persevered?
couldn't they have persevere persevered? 	couldn't I have been persevere persevering?
couldn't you have been persevere persevering?
couldn't she have been persevere persevering?
couldn't we have been persevere persevering?
couldn't you have been persevere persevering?
couldn't they have been persevere persevering?