English verb conjugation
OUGHT TO REFEREE

Regular verb: referee - refereed - refereed

Affirmation

Simple form	V-ing form
I ought to referee you ought to referee he ought to referee we ought to referee you ought to referee they ought to referee	I ought to be refereeing you ought to be refereeing he ought to be refereeing we ought to be refereeing you ought to be refereeing they ought to be refereeing
Perfect	V-ing perfect
I ought to have refereed you ought to have refereed he ought to have refereed we ought to have refereed you ought to have refereed they ought to have refereed	I ought to have been refereeing you ought to have been refereeing he ought to have been refereeing we ought to have been refereeing you ought to have been refereeing they ought to have been refereeing

Negation

Simple form	V-ing form
I oughtn't to referee you oughtn't to referee he oughtn't to referee we oughtn't to referee you oughtn't to referee they oughtn't to referee	I oughtn't to be refereeing you oughtn't to be refereeing he oughtn't to be refereeing we oughtn't to be refereeing you oughtn't to be refereeing they oughtn't to be refereeing
Perfect	V-ing perfect
I oughtn't to have refereed you oughtn't to have refereed he oughtn't to have refereed we oughtn't to have refereed you oughtn't to have refereed they oughtn't to have refereed	I oughtn't to have been refereeing you oughtn't to have been refereeing he oughtn't to have been refereeing we oughtn't to have been refereeing you oughtn't to have been refereeing they oughtn't to have been refereeing

Interrogative form

Simple form	V-ing form
ought to I referee? ought to you referee? ought to he referee? ought to we referee? ought to you referee? ought to they referee?	ought to I be refereeing? ought to you be refereeing? ought to he be refereeing? ought to we be refereeing? ought to you be refereeing? ought to they be refereeing?
Perfect	V-ing perfect
ought to I have refereed? ought to you have refereed? ought to he have refereed? ought to we have refereed? ought to you have refereed? ought to they have refereed?	ought to I have been refereeing? ought to you have been refereeing? ought to he have been refereeing? ought to we have been refereeing? ought to you have been refereeing? ought to they have been refereeing?

Interro-negative form

Simple form	V-ing form
oughtn't I to referee? oughtn't you to referee? oughtn't he to referee? oughtn't we to referee? oughtn't you to referee? oughtn't they to referee?	oughtn't I to be refereeing? oughtn't you to be refereeing? oughtn't he to be refereeing? oughtn't we to be refereeing? oughtn't you to be refereeing? oughtn't they to be refereeing?
Perfect	V-ing perfect
oughtn't I to have refereed? oughtn't you to have refereed? oughtn't he to have refereed? oughtn't we to have refereed? oughtn't you to have refereed? oughtn't they to have refereed?	oughtn't I to have been refereeing? oughtn't you to have been refereeing? oughtn't he to have been refereeing? oughtn't we to have been refereeing? oughtn't you to have been refereeing? oughtn't they to have been refereeing?