I ought to acquaint you ought to acquaint he ought to acquaint we ought to acquaint you ought to acquaint they ought to acquaint
V-ing form
I ought to be acquainting you ought to be acquainting he ought to be acquainting we ought to be acquainting you ought to be acquainting they ought to be acquainting
Perfect
I ought to have acquainted you ought to have acquainted he ought to have acquainted we ought to have acquainted you ought to have acquainted they ought to have acquainted
V-ing perfect
I ought to have been acquainting you ought to have been acquainting he ought to have been acquainting we ought to have been acquainting you ought to have been acquainting they ought to have been acquainting
Negation
Simple form
I oughtn't to acquaint you oughtn't to acquaint he oughtn't to acquaint we oughtn't to acquaint you oughtn't to acquaint they oughtn't to acquaint
V-ing form
I oughtn't to be acquainting you oughtn't to be acquainting he oughtn't to be acquainting we oughtn't to be acquainting you oughtn't to be acquainting they oughtn't to be acquainting
Perfect
I oughtn't to have acquainted you oughtn't to have acquainted he oughtn't to have acquainted we oughtn't to have acquainted you oughtn't to have acquainted they oughtn't to have acquainted
V-ing perfect
I oughtn't to have been acquainting you oughtn't to have been acquainting he oughtn't to have been acquainting we oughtn't to have been acquainting you oughtn't to have been acquainting they oughtn't to have been acquainting
Interrogative form
Simple form
ought to I acquaint? ought to you acquaint? ought to he acquaint? ought to we acquaint? ought to you acquaint? ought to they acquaint?
V-ing form
ought to I be acquainting? ought to you be acquainting? ought to he be acquainting? ought to we be acquainting? ought to you be acquainting? ought to they be acquainting?
Perfect
ought to I have acquainted? ought to you have acquainted? ought to he have acquainted? ought to we have acquainted? ought to you have acquainted? ought to they have acquainted?
V-ing perfect
ought to I have been acquainting? ought to you have been acquainting? ought to he have been acquainting? ought to we have been acquainting? ought to you have been acquainting? ought to they have been acquainting?
Interro-negative form
Simple form
oughtn't I to acquaint? oughtn't you to acquaint? oughtn't he to acquaint? oughtn't we to acquaint? oughtn't you to acquaint? oughtn't they to acquaint?
V-ing form
oughtn't I to be acquainting? oughtn't you to be acquainting? oughtn't he to be acquainting? oughtn't we to be acquainting? oughtn't you to be acquainting? oughtn't they to be acquainting?
Perfect
oughtn't I to have acquainted? oughtn't you to have acquainted? oughtn't he to have acquainted? oughtn't we to have acquainted? oughtn't you to have acquainted? oughtn't they to have acquainted?
V-ing perfect
oughtn't I to have been acquainting? oughtn't you to have been acquainting? oughtn't he to have been acquainting? oughtn't we to have been acquainting? oughtn't you to have been acquainting? oughtn't they to have been acquainting?