I ought to descale you ought to descale she ought to descale we ought to descale you ought to descale they ought to descale
Forme en V-ing
I ought to be descaling you ought to be descaling she ought to be descaling we ought to be descaling you ought to be descaling they ought to be descaling
Perfect
I ought to have descaled you ought to have descaled she ought to have descaled we ought to have descaled you ought to have descaled they ought to have descaled
Perfect en V-ing
I ought to have been descaling you ought to have been descaling she ought to have been descaling we ought to have been descaling you ought to have been descaling they ought to have been descaling
Négation
Forme simple
I ought not to descale you ought not to descale she ought not to descale we ought not to descale you ought not to descale they ought not to descale
Forme en V-ing
I ought not to descaling you ought not to descaling she ought not to descaling we ought not to descaling you ought not to descaling they ought not to descaling
Perfect
I ought not to have descaled you ought not to have descaled she ought not to have descaled we ought not to have descaled you ought not to have descaled they ought not to have descaled
Perfect en V-ing
I ought not to have been descaling you ought not to have been descaling she 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
Forme interrogative
Forme simple
ought to I descale? ought to you descale? ought to she descale? ought to we descale? ought to you descale? ought to they descale?
Forme en V-ing
ought to I be descaling? ought to you be descaling? ought to she be descaling? ought to we be descaling? ought to you be descaling? ought to they be descaling?
Perfect
ought to I have descaled? ought to you have descaled? ought to she have descaled? ought to we have descaled? ought to you have descaled? ought to they have descaled?
Perfect en V-ing
ought to I have been descaling? ought to you have been descaling? ought to she have been descaling? ought to we have been descaling? ought to you have been descaling? ought to they have been descaling?
Forme interro-négative
Forme simple
ought I not to descale? ought you not to descale? ought she not to descale? ought we not to descale? ought you not to descale? ought they not to descale?
Forme en V-ing
ought I not to be descaling? ought you not to be descaling? ought she not to be descaling? ought we not to be descaling? ought you not to be descaling? ought they not to be descaling?
Perfect
ought I not to have descaled? ought you not to have descaled? ought she not to have descaled? ought we not to have descaled? ought you not to have descaled? ought they not to have descaled?
Perfect en V-ing
ought I not to have been descaling? ought you not to have been descaling? ought she 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?