may persevere
Regular verb: persevere - persevered- persevered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may persevere
you may persevere
he may persevere
we may persevere
you may persevere
they may persevere 	I may be persevering
you may be persevering
he may be persevering
we may be persevering
you may be persevering
they may be persevering	I may have persevered
you may have persevered
he may have persevered
we may have persevered
you may have persevered
they may have persevered	I may have been persevering
you may have been persevering
he may have been persevering
we may have been persevering
you may have been persevering
they may have been persevering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not persevere
you may not persevere
he may not persevere
we may not persevere
you may not persevere
they may not persevere 	I may not be persevering
you may not be persevering
he may not be persevering
we may not be persevering
you may not be persevering
they may not be persevering	I may not have persevered
you may not have persevered
he may not have persevered
we may not have persevered
you may not have persevered
they may not have persevered	I may not have been persevering
you may not have been persevering
he may not have been persevering
we may not have been persevering
you may not have been persevering
they may not have been persevering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I persevere?
may you persevere?
may he persevere?
may we persevere?
may you persevere?
may they persevere? 	may I be persevering?
may you be persevering?
may he be persevering?
may we be persevering?
may you be persevering?
may they be persevering? 	may I have persevered?
may you have persevered?
may he have persevered?
may we have persevered?
may you have persevered?
may they have persevered? 	may I have been persevering?
may you have been persevering?
may he have been persevering?
may we have been persevering?
may you have been persevering?
may they have been persevering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not persevere?
may you not persevere?
may he not persevere?
may we not persevere?
may you not persevere?
may they not persevere? 	may I not be persevering?
may you not be persevering?
may he not be persevering?
may we not be persevering?
may you not be persevering?
may they not be persevering? 	may I not have persevered?
may you not have persevered?
may he not have persevered?
may we not have persevered?
may you not have persevered?
may they not have persevered? 	may I not have been persevering?
may you not have been persevering?
may he not have been persevering?
may we not have been persevering?
may you not have been persevering?
may they not have been persevering?