I ought to fever you ought to fever he ought to fever we ought to fever you ought to fever they ought to fever
V-ing form
I ought to be fevering you ought to be fevering he ought to be fevering we ought to be fevering you ought to be fevering they ought to be fevering
Perfect
I ought to have fevered you ought to have fevered he ought to have fevered we ought to have fevered you ought to have fevered they ought to have fevered
V-ing perfect
I ought to have been fevering you ought to have been fevering he ought to have been fevering we ought to have been fevering you ought to have been fevering they ought to have been fevering
Negation
Simple form
I ought not to fever you ought not to fever he ought not to fever we ought not to fever you ought not to fever they ought not to fever
V-ing form
I ought not to fevering you ought not to fevering he ought not to fevering we ought not to fevering you ought not to fevering they ought not to fevering
Perfect
I ought not to have fevered you ought not to have fevered he ought not to have fevered we ought not to have fevered you ought not to have fevered they ought not to have fevered
V-ing perfect
I ought not to have been fevering you ought not to have been fevering he ought not to have been fevering we ought not to have been fevering you ought not to have been fevering they ought not to have been fevering
Interrogative form
Simple form
ought to I fever? ought to you fever? ought to he fever? ought to we fever? ought to you fever? ought to they fever?
V-ing form
ought to I be fevering? ought to you be fevering? ought to he be fevering? ought to we be fevering? ought to you be fevering? ought to they be fevering?
Perfect
ought to I have fevered? ought to you have fevered? ought to he have fevered? ought to we have fevered? ought to you have fevered? ought to they have fevered?
V-ing perfect
ought to I have been fevering? ought to you have been fevering? ought to he have been fevering? ought to we have been fevering? ought to you have been fevering? ought to they have been fevering?
Interro-negative form
Simple form
ought I not to fever? ought you not to fever? ought he not to fever? ought we not to fever? ought you not to fever? ought they not to fever?
V-ing form
ought I not to be fevering? ought you not to be fevering? ought he not to be fevering? ought we not to be fevering? ought you not to be fevering? ought they not to be fevering?
Perfect
ought I not to have fevered? ought you not to have fevered? ought he not to have fevered? ought we not to have fevered? ought you not to have fevered? ought they not to have fevered?
V-ing perfect
ought I not to have been fevering? ought you not to have been fevering? ought he not to have been fevering? ought we not to have been fevering? ought you not to have been fevering? ought they not to have been fevering?