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 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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?