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