English verb conjugation
COULD PERSEVERE PERSEVERE

Regular verb: persevere persevere - persevere persevered - persevere persevered

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

Simple form	V-ing form
could I not persevere persevere? could you not persevere persevere? could he 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 he not be persevere persevering? could we not be persevere persevering? could you not be persevere persevering? could they not be persevere persevering?
Perfect	V-ing perfect
could I not have persevere persevered? could you not have persevere persevered? could he 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 he 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?