ought to quaver
Regular verb: quaver - quavered- quavered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to quaver
you ought to quaver
he ought to quaver
we ought to quaver
you ought to quaver
they ought to quaver 	I ought to be quavering
you ought to be quavering
he ought to be quavering
we ought to be quavering
you ought to be quavering
they ought to be quavering	I ought to have quavered
you ought to have quavered
he ought to have quavered
we ought to have quavered
you ought to have quavered
they ought to have quavered	I ought to have been quavering
you ought to have been quavering
he ought to have been quavering
we ought to have been quavering
you ought to have been quavering
they ought to have been quavering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to quaver
you ought not to quaver
he ought not to quaver
we ought not to quaver
you ought not to quaver
they ought not to quaver 	I ought not to quavering
you ought not to quavering
he ought not to quavering
we ought not to quavering
you ought not to quavering
they ought not to quavering	I ought not to have quavered
you ought not to have quavered
he ought not to have quavered
we ought not to have quavered
you ought not to have quavered
they ought not to have quavered	I ought not to have been quavering
you ought not to have been quavering
he ought not to have been quavering
we ought not to have been quavering
you ought not to have been quavering
they ought not to have been quavering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I quaver?
ought to you quaver?
ought to he quaver?
ought to we quaver?
ought to you quaver?
ought to they quaver? 	ought to I be quavering?
ought to you be quavering?
ought to he be quavering?
ought to we be quavering?
ought to you be quavering?
ought to they be quavering? 	ought to I have quavered?
ought to you have quavered?
ought to he have quavered?
ought to we have quavered?
ought to you have quavered?
ought to they have quavered? 	ought to I have been quavering?
ought to you have been quavering?
ought to he have been quavering?
ought to we have been quavering?
ought to you have been quavering?
ought to they have been quavering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to quaver?
ought you not to quaver?
ought he not to quaver?
ought we not to quaver?
ought you not to quaver?
ought they not to quaver? 	ought I not to be quavering?
ought you not to be quavering?
ought he not to be quavering?
ought we not to be quavering?
ought you not to be quavering?
ought they not to be quavering? 	ought I not to have quavered?
ought you not to have quavered?
ought he not to have quavered?
ought we not to have quavered?
ought you not to have quavered?
ought they not to have quavered? 	ought I not to have been quavering?
ought you not to have been quavering?
ought he not to have been quavering?
ought we not to have been quavering?
ought you not to have been quavering?
ought they not to have been quavering?