English verb conjugation
OUGHT TO QUIVER

Regular verb: quiver - quivered - quivered

Affirmation

Simple form	V-ing form
I ought to quiver you ought to quiver she ought to quiver we ought to quiver you ought to quiver they ought to quiver	I ought to be quivering you ought to be quivering she ought to be quivering we ought to be quivering you ought to be quivering they ought to be quivering
Perfect	V-ing perfect
I ought to have quivered you ought to have quivered she ought to have quivered we ought to have quivered you ought to have quivered they ought to have quivered	I ought to have been quivering you ought to have been quivering she ought to have been quivering we ought to have been quivering you ought to have been quivering they ought to have been quivering

Negation

Simple form	V-ing form
I oughtn't to quiver you oughtn't to quiver she oughtn't to quiver we oughtn't to quiver you oughtn't to quiver they oughtn't to quiver	I oughtn't to be quivering you oughtn't to be quivering she oughtn't to be quivering we oughtn't to be quivering you oughtn't to be quivering they oughtn't to be quivering
Perfect	V-ing perfect
I oughtn't to have quivered you oughtn't to have quivered she oughtn't to have quivered we oughtn't to have quivered you oughtn't to have quivered they oughtn't to have quivered	I oughtn't to have been quivering you oughtn't to have been quivering she oughtn't to have been quivering we oughtn't to have been quivering you oughtn't to have been quivering they oughtn't to have been quivering

Interrogative form

Simple form	V-ing form
ought to I quiver? ought to you quiver? ought to she quiver? ought to we quiver? ought to you quiver? ought to they quiver?	ought to I be quivering? ought to you be quivering? ought to she be quivering? ought to we be quivering? ought to you be quivering? ought to they be quivering?
Perfect	V-ing perfect
ought to I have quivered? ought to you have quivered? ought to she have quivered? ought to we have quivered? ought to you have quivered? ought to they have quivered?	ought to I have been quivering? ought to you have been quivering? ought to she have been quivering? ought to we have been quivering? ought to you have been quivering? ought to they have been quivering?

Interro-negative form

Simple form	V-ing form
oughtn't I to quiver? oughtn't you to quiver? oughtn't she to quiver? oughtn't we to quiver? oughtn't you to quiver? oughtn't they to quiver?	oughtn't I to be quivering? oughtn't you to be quivering? oughtn't she to be quivering? oughtn't we to be quivering? oughtn't you to be quivering? oughtn't they to be quivering?
Perfect	V-ing perfect
oughtn't I to have quivered? oughtn't you to have quivered? oughtn't she to have quivered? oughtn't we to have quivered? oughtn't you to have quivered? oughtn't they to have quivered?	oughtn't I to have been quivering? oughtn't you to have been quivering? oughtn't she to have been quivering? oughtn't we to have been quivering? oughtn't you to have been quivering? oughtn't they to have been quivering?