English verb conjugation
OUGHT TO ROLF

Regular verb: rolf - rolfed - rolfed

Affirmation

Simple form	V-ing form
I ought to rolf you ought to rolf he ought to rolf we ought to rolf you ought to rolf they ought to rolf	I ought to be rolfing you ought to be rolfing he ought to be rolfing we ought to be rolfing you ought to be rolfing they ought to be rolfing
Perfect	V-ing perfect
I ought to have rolfed you ought to have rolfed he ought to have rolfed we ought to have rolfed you ought to have rolfed they ought to have rolfed	I ought to have been rolfing you ought to have been rolfing he ought to have been rolfing we ought to have been rolfing you ought to have been rolfing they ought to have been rolfing

Negation

Simple form	V-ing form
I ought not to rolf you ought not to rolf he ought not to rolf we ought not to rolf you ought not to rolf they ought not to rolf	I ought not to rolfing you ought not to rolfing he ought not to rolfing we ought not to rolfing you ought not to rolfing they ought not to rolfing
Perfect	V-ing perfect
I ought not to have rolfed you ought not to have rolfed he ought not to have rolfed we ought not to have rolfed you ought not to have rolfed they ought not to have rolfed	I ought not to have been rolfing you ought not to have been rolfing he ought not to have been rolfing we ought not to have been rolfing you ought not to have been rolfing they ought not to have been rolfing

Interrogative form

Simple form	V-ing form
ought to I rolf? ought to you rolf? ought to he rolf? ought to we rolf? ought to you rolf? ought to they rolf?	ought to I be rolfing? ought to you be rolfing? ought to he be rolfing? ought to we be rolfing? ought to you be rolfing? ought to they be rolfing?
Perfect	V-ing perfect
ought to I have rolfed? ought to you have rolfed? ought to he have rolfed? ought to we have rolfed? ought to you have rolfed? ought to they have rolfed?	ought to I have been rolfing? ought to you have been rolfing? ought to he have been rolfing? ought to we have been rolfing? ought to you have been rolfing? ought to they have been rolfing?

Interro-negative form

Simple form	V-ing form
ought I not to rolf? ought you not to rolf? ought he not to rolf? ought we not to rolf? ought you not to rolf? ought they not to rolf?	ought I not to be rolfing? ought you not to be rolfing? ought he not to be rolfing? ought we not to be rolfing? ought you not to be rolfing? ought they not to be rolfing?
Perfect	V-ing perfect
ought I not to have rolfed? ought you not to have rolfed? ought he not to have rolfed? ought we not to have rolfed? ought you not to have rolfed? ought they not to have rolfed?	ought I not to have been rolfing? ought you not to have been rolfing? ought he not to have been rolfing? ought we not to have been rolfing? ought you not to have been rolfing? ought they not to have been rolfing?