could persevere persevere
Verbo regular: persevere persevere - persevere persevered- persevere persevered

, este verbo pode não existir, a conjugação é dada como exemplo.

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com 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	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not persevere persevere
you could not persevere persevere
she could not persevere persevere
we could not persevere persevere
you could not persevere persevere
they could not persevere persevere 	I could not be persevere persevering
you could not be persevere persevering
she could not be persevere persevering
we could not be persevere persevering
you could not be persevere persevering
they could not be persevere persevering	I could not have persevere persevered
you could not have persevere persevered
she could not have persevere persevered
we could not have persevere persevered
you could not have persevere persevered
they could not have persevere persevered	I could not have been persevere persevering
you could not have been persevere persevering
she could not have been persevere persevering
we could not have been persevere persevering
you could not have been persevere persevering
they could not have been persevere persevering	

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

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not persevere persevere?
could you not persevere persevere?
could she not persevere persevere?
could we not persevere persevere?
could you not persevere persevere?
could they not persevere persevere? 	could I not be persevere persevering?
could you not be persevere persevering?
could she not be persevere persevering?
could we not be persevere persevering?
could you not be persevere persevering?
could they not be persevere persevering? 	could I not have persevere persevered?
could you not have persevere persevered?
could she not have persevere persevered?
could we not have persevere persevered?
could you not have persevere persevered?
could they not have persevere persevered? 	could I not have been persevere persevering?
could you not have been persevere persevering?
could she not have been persevere persevering?
could we not have been persevere persevering?
could you not have been persevere persevering?
could they not have been persevere persevering?