English verb conjugation
OUGHT TO GRAVEL

Regular verb: gravel - gravelled - gravelled

Affirmation

Simple form	V-ing form
I ought to gravel you ought to gravel she ought to gravel we ought to gravel you ought to gravel they ought to gravel	I ought to be gravelling you ought to be gravelling she ought to be gravelling we ought to be gravelling you ought to be gravelling they ought to be gravelling
Perfect	V-ing perfect
I ought to have gravelled you ought to have gravelled she ought to have gravelled we ought to have gravelled you ought to have gravelled they ought to have gravelled	I ought to have been gravelling you ought to have been gravelling she ought to have been gravelling we ought to have been gravelling you ought to have been gravelling they ought to have been gravelling

Negation

Simple form	V-ing form
I oughtn't to gravel you oughtn't to gravel she oughtn't to gravel we oughtn't to gravel you oughtn't to gravel they oughtn't to gravel	I oughtn't to be gravelling you oughtn't to be gravelling she oughtn't to be gravelling we oughtn't to be gravelling you oughtn't to be gravelling they oughtn't to be gravelling
Perfect	V-ing perfect
I oughtn't to have gravelled you oughtn't to have gravelled she oughtn't to have gravelled we oughtn't to have gravelled you oughtn't to have gravelled they oughtn't to have gravelled	I oughtn't to have been gravelling you oughtn't to have been gravelling she oughtn't to have been gravelling we oughtn't to have been gravelling you oughtn't to have been gravelling they oughtn't to have been gravelling

Interrogative form

Simple form	V-ing form
ought to I gravel? ought to you gravel? ought to she gravel? ought to we gravel? ought to you gravel? ought to they gravel?	ought to I be gravelling? ought to you be gravelling? ought to she be gravelling? ought to we be gravelling? ought to you be gravelling? ought to they be gravelling?
Perfect	V-ing perfect
ought to I have gravelled? ought to you have gravelled? ought to she have gravelled? ought to we have gravelled? ought to you have gravelled? ought to they have gravelled?	ought to I have been gravelling? ought to you have been gravelling? ought to she have been gravelling? ought to we have been gravelling? ought to you have been gravelling? ought to they have been gravelling?

Interro-negative form

Simple form	V-ing form
oughtn't I to gravel? oughtn't you to gravel? oughtn't she to gravel? oughtn't we to gravel? oughtn't you to gravel? oughtn't they to gravel?	oughtn't I to be gravelling? oughtn't you to be gravelling? oughtn't she to be gravelling? oughtn't we to be gravelling? oughtn't you to be gravelling? oughtn't they to be gravelling?
Perfect	V-ing perfect
oughtn't I to have gravelled? oughtn't you to have gravelled? oughtn't she to have gravelled? oughtn't we to have gravelled? oughtn't you to have gravelled? oughtn't they to have gravelled?	oughtn't I to have been gravelling? oughtn't you to have been gravelling? oughtn't she to have been gravelling? oughtn't we to have been gravelling? oughtn't you to have been gravelling? oughtn't they to have been gravelling?