English verb conjugation
OUGHT TO DESCALE

Regular verb: descale - descaled - descaled

Affirmation

Simple form	V-ing form
I ought to descale you ought to descale he ought to descale we ought to descale you ought to descale they ought to descale	I ought to be descaling you ought to be descaling he ought to be descaling we ought to be descaling you ought to be descaling they ought to be descaling
Perfect	V-ing perfect
I ought to have descaled you ought to have descaled he ought to have descaled we ought to have descaled you ought to have descaled they ought to have descaled	I ought to have been descaling you ought to have been descaling he ought to have been descaling we ought to have been descaling you ought to have been descaling they ought to have been descaling

Negation

Simple form	V-ing form
I ought not to descale you ought not to descale he ought not to descale we ought not to descale you ought not to descale they ought not to descale	I ought not to descaling you ought not to descaling he ought not to descaling we ought not to descaling you ought not to descaling they ought not to descaling
Perfect	V-ing perfect
I ought not to have descaled you ought not to have descaled he ought not to have descaled we ought not to have descaled you ought not to have descaled they ought not to have descaled	I ought not to have been descaling you ought not to have been descaling he ought not to have been descaling we ought not to have been descaling you ought not to have been descaling they ought not to have been descaling

Interrogative form

Simple form	V-ing form
ought to I descale? ought to you descale? ought to he descale? ought to we descale? ought to you descale? ought to they descale?	ought to I be descaling? ought to you be descaling? ought to he be descaling? ought to we be descaling? ought to you be descaling? ought to they be descaling?
Perfect	V-ing perfect
ought to I have descaled? ought to you have descaled? ought to he have descaled? ought to we have descaled? ought to you have descaled? ought to they have descaled?	ought to I have been descaling? ought to you have been descaling? ought to he have been descaling? ought to we have been descaling? ought to you have been descaling? ought to they have been descaling?

Interro-negative form

Simple form	V-ing form
ought I not to descale? ought you not to descale? ought he not to descale? ought we not to descale? ought you not to descale? ought they not to descale?	ought I not to be descaling? ought you not to be descaling? ought he not to be descaling? ought we not to be descaling? ought you not to be descaling? ought they not to be descaling?
Perfect	V-ing perfect
ought I not to have descaled? ought you not to have descaled? ought he not to have descaled? ought we not to have descaled? ought you not to have descaled? ought they not to have descaled?	ought I not to have been descaling? ought you not to have been descaling? ought he not to have been descaling? ought we not to have been descaling? ought you not to have been descaling? ought they not to have been descaling?