English verb conjugation
OUGHT TO SPAR

Regular verb: spar - sparred - sparred

Affirmation

Simple form	V-ing form
I ought to spar you ought to spar she ought to spar we ought to spar you ought to spar they ought to spar	I ought to be sparring you ought to be sparring she ought to be sparring we ought to be sparring you ought to be sparring they ought to be sparring
Perfect	V-ing perfect
I ought to have sparred you ought to have sparred she ought to have sparred we ought to have sparred you ought to have sparred they ought to have sparred	I ought to have been sparring you ought to have been sparring she ought to have been sparring we ought to have been sparring you ought to have been sparring they ought to have been sparring

Negation

Simple form	V-ing form
I oughtn't to spar you oughtn't to spar she oughtn't to spar we oughtn't to spar you oughtn't to spar they oughtn't to spar	I oughtn't to be sparring you oughtn't to be sparring she oughtn't to be sparring we oughtn't to be sparring you oughtn't to be sparring they oughtn't to be sparring
Perfect	V-ing perfect
I oughtn't to have sparred you oughtn't to have sparred she oughtn't to have sparred we oughtn't to have sparred you oughtn't to have sparred they oughtn't to have sparred	I oughtn't to have been sparring you oughtn't to have been sparring she oughtn't to have been sparring we oughtn't to have been sparring you oughtn't to have been sparring they oughtn't to have been sparring

Interrogative form

Simple form	V-ing form
ought to I spar? ought to you spar? ought to she spar? ought to we spar? ought to you spar? ought to they spar?	ought to I be sparring? ought to you be sparring? ought to she be sparring? ought to we be sparring? ought to you be sparring? ought to they be sparring?
Perfect	V-ing perfect
ought to I have sparred? ought to you have sparred? ought to she have sparred? ought to we have sparred? ought to you have sparred? ought to they have sparred?	ought to I have been sparring? ought to you have been sparring? ought to she have been sparring? ought to we have been sparring? ought to you have been sparring? ought to they have been sparring?

Interro-negative form

Simple form	V-ing form
oughtn't I to spar? oughtn't you to spar? oughtn't she to spar? oughtn't we to spar? oughtn't you to spar? oughtn't they to spar?	oughtn't I to be sparring? oughtn't you to be sparring? oughtn't she to be sparring? oughtn't we to be sparring? oughtn't you to be sparring? oughtn't they to be sparring?
Perfect	V-ing perfect
oughtn't I to have sparred? oughtn't you to have sparred? oughtn't she to have sparred? oughtn't we to have sparred? oughtn't you to have sparred? oughtn't they to have sparred?	oughtn't I to have been sparring? oughtn't you to have been sparring? oughtn't she to have been sparring? oughtn't we to have been sparring? oughtn't you to have been sparring? oughtn't they to have been sparring?