English verb conjugation
OUGHT TO FLAG

Regular verb: flag - flagged - flagged

Affirmation

Simple form	V-ing form
I ought to flag you ought to flag he ought to flag we ought to flag you ought to flag they ought to flag	I ought to be flagging you ought to be flagging he ought to be flagging we ought to be flagging you ought to be flagging they ought to be flagging
Perfect	V-ing perfect
I ought to have flagged you ought to have flagged he ought to have flagged we ought to have flagged you ought to have flagged they ought to have flagged	I ought to have been flagging you ought to have been flagging he ought to have been flagging we ought to have been flagging you ought to have been flagging they ought to have been flagging

Negation

Simple form	V-ing form
I oughtn't to flag you oughtn't to flag he oughtn't to flag we oughtn't to flag you oughtn't to flag they oughtn't to flag	I oughtn't to be flagging you oughtn't to be flagging he oughtn't to be flagging we oughtn't to be flagging you oughtn't to be flagging they oughtn't to be flagging
Perfect	V-ing perfect
I oughtn't to have flagged you oughtn't to have flagged he oughtn't to have flagged we oughtn't to have flagged you oughtn't to have flagged they oughtn't to have flagged	I oughtn't to have been flagging you oughtn't to have been flagging he oughtn't to have been flagging we oughtn't to have been flagging you oughtn't to have been flagging they oughtn't to have been flagging

Interrogative form

Simple form	V-ing form
ought to I flag? ought to you flag? ought to he flag? ought to we flag? ought to you flag? ought to they flag?	ought to I be flagging? ought to you be flagging? ought to he be flagging? ought to we be flagging? ought to you be flagging? ought to they be flagging?
Perfect	V-ing perfect
ought to I have flagged? ought to you have flagged? ought to he have flagged? ought to we have flagged? ought to you have flagged? ought to they have flagged?	ought to I have been flagging? ought to you have been flagging? ought to he have been flagging? ought to we have been flagging? ought to you have been flagging? ought to they have been flagging?

Interro-negative form

Simple form	V-ing form
oughtn't I to flag? oughtn't you to flag? oughtn't he to flag? oughtn't we to flag? oughtn't you to flag? oughtn't they to flag?	oughtn't I to be flagging? oughtn't you to be flagging? oughtn't he to be flagging? oughtn't we to be flagging? oughtn't you to be flagging? oughtn't they to be flagging?
Perfect	V-ing perfect
oughtn't I to have flagged? oughtn't you to have flagged? oughtn't he to have flagged? oughtn't we to have flagged? oughtn't you to have flagged? oughtn't they to have flagged?	oughtn't I to have been flagging? oughtn't you to have been flagging? oughtn't he to have been flagging? oughtn't we to have been flagging? oughtn't you to have been flagging? oughtn't they to have been flagging?