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