should persevere
Verbo regular: persevere - persevered- persevered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should persevere
you should persevere
he should persevere
we should persevere
you should persevere
they should persevere 	I should be persevering
you should be persevering
he should be persevering
we should be persevering
you should be persevering
they should be persevering	I should have persevered
you should have persevered
he should have persevered
we should have persevered
you should have persevered
they should have persevered	I should have been persevering
you should have been persevering
he should have been persevering
we should have been persevering
you should have been persevering
they should have been persevering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not persevere
you should not persevere
he should not persevere
we should not persevere
you should not persevere
they should not persevere 	I should not be persevering
you should not be persevering
he should not be persevering
we should not be persevering
you should not be persevering
they should not be persevering	I should not have persevered
you should not have persevered
he should not have persevered
we should not have persevered
you should not have persevered
they should not have persevered	I should not have been persevering
you should not have been persevering
he should not have been persevering
we should not have been persevering
you should not have been persevering
they should not have been persevering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I persevere?
should you persevere?
should he persevere?
should we persevere?
should you persevere?
should they persevere? 	should I be persevering?
should you be persevering?
should he be persevering?
should we be persevering?
should you be persevering?
should they be persevering? 	should I have persevered?
should you have persevered?
should he have persevered?
should we have persevered?
should you have persevered?
should they have persevered? 	should I have been persevering?
should you have been persevering?
should he have been persevering?
should we have been persevering?
should you have been persevering?
should they have been persevering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not persevere?
should you not persevere?
should he not persevere?
should we not persevere?
should you not persevere?
should they not persevere? 	should I not be persevering?
should you not be persevering?
should he not be persevering?
should we not be persevering?
should you not be persevering?
should they not be persevering? 	should I not have persevered?
should you not have persevered?
should he not have persevered?
should we not have persevered?
should you not have persevered?
should they not have persevered? 	should I not have been persevering?
should you not have been persevering?
should he not have been persevering?
should we not have been persevering?
should you not have been persevering?
should they not have been persevering?