English verb conjugation
OUGHT TO BRIEF

Regular verb: brief - briefed - briefed

Affirmation

Simple form	V-ing form
I ought to brief you ought to brief she ought to brief we ought to brief you ought to brief they ought to brief	I ought to be briefing you ought to be briefing she ought to be briefing we ought to be briefing you ought to be briefing they ought to be briefing
Perfect	V-ing perfect
I ought to have briefed you ought to have briefed she ought to have briefed we ought to have briefed you ought to have briefed they ought to have briefed	I ought to have been briefing you ought to have been briefing she ought to have been briefing we ought to have been briefing you ought to have been briefing they ought to have been briefing

Negation

Simple form	V-ing form
I oughtn't to brief you oughtn't to brief she oughtn't to brief we oughtn't to brief you oughtn't to brief they oughtn't to brief	I oughtn't to be briefing you oughtn't to be briefing she oughtn't to be briefing we oughtn't to be briefing you oughtn't to be briefing they oughtn't to be briefing
Perfect	V-ing perfect
I oughtn't to have briefed you oughtn't to have briefed she oughtn't to have briefed we oughtn't to have briefed you oughtn't to have briefed they oughtn't to have briefed	I oughtn't to have been briefing you oughtn't to have been briefing she oughtn't to have been briefing we oughtn't to have been briefing you oughtn't to have been briefing they oughtn't to have been briefing

Interrogative form

Simple form	V-ing form
ought to I brief? ought to you brief? ought to she brief? ought to we brief? ought to you brief? ought to they brief?	ought to I be briefing? ought to you be briefing? ought to she be briefing? ought to we be briefing? ought to you be briefing? ought to they be briefing?
Perfect	V-ing perfect
ought to I have briefed? ought to you have briefed? ought to she have briefed? ought to we have briefed? ought to you have briefed? ought to they have briefed?	ought to I have been briefing? ought to you have been briefing? ought to she have been briefing? ought to we have been briefing? ought to you have been briefing? ought to they have been briefing?

Interro-negative form

Simple form	V-ing form
oughtn't I to brief? oughtn't you to brief? oughtn't she to brief? oughtn't we to brief? oughtn't you to brief? oughtn't they to brief?	oughtn't I to be briefing? oughtn't you to be briefing? oughtn't she to be briefing? oughtn't we to be briefing? oughtn't you to be briefing? oughtn't they to be briefing?
Perfect	V-ing perfect
oughtn't I to have briefed? oughtn't you to have briefed? oughtn't she to have briefed? oughtn't we to have briefed? oughtn't you to have briefed? oughtn't they to have briefed?	oughtn't I to have been briefing? oughtn't you to have been briefing? oughtn't she to have been briefing? oughtn't we to have been briefing? oughtn't you to have been briefing? oughtn't they to have been briefing?