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 he 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 he 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 he 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 he 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 ought not to gravel you ought not to gravel he ought not to gravel we ought not to gravel you ought not to gravel they ought not to gravel	I ought not to gravelling you ought not to gravelling he ought not to gravelling we ought not to gravelling you ought not to gravelling they ought not to gravelling
Perfect	V-ing perfect
I ought not to have gravelled you ought not to have gravelled he ought not to have gravelled we ought not to have gravelled you ought not to have gravelled they ought not to have gravelled	I ought not to have been gravelling you ought not to have been gravelling he ought not to have been gravelling we ought not to have been gravelling you ought not to have been gravelling they ought not to have been gravelling

Interrogative form

Simple form	V-ing form
ought to I gravel? ought to you gravel? ought to he 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 he 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 he 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 he 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
ought I not to gravel? ought you not to gravel? ought he not to gravel? ought we not to gravel? ought you not to gravel? ought they not to gravel?	ought I not to be gravelling? ought you not to be gravelling? ought he not to be gravelling? ought we not to be gravelling? ought you not to be gravelling? ought they not to be gravelling?
Perfect	V-ing perfect
ought I not to have gravelled? ought you not to have gravelled? ought he not to have gravelled? ought we not to have gravelled? ought you not to have gravelled? ought they not to have gravelled?	ought I not to have been gravelling? ought you not to have been gravelling? ought he not to have been gravelling? ought we not to have been gravelling? ought you not to have been gravelling? ought they not to have been gravelling?