I ought to oil you ought to oil she ought to oil we ought to oil you ought to oil they ought to oil
V-ing form
I ought to be oiling you ought to be oiling she ought to be oiling we ought to be oiling you ought to be oiling they ought to be oiling
Perfect
I ought to have oiled you ought to have oiled she ought to have oiled we ought to have oiled you ought to have oiled they ought to have oiled
V-ing perfect
I ought to have been oiling you ought to have been oiling she ought to have been oiling we ought to have been oiling you ought to have been oiling they ought to have been oiling
Negation
Simple form
I ought not to oil you ought not to oil she ought not to oil we ought not to oil you ought not to oil they ought not to oil
V-ing form
I ought not to oiling you ought not to oiling she ought not to oiling we ought not to oiling you ought not to oiling they ought not to oiling
Perfect
I ought not to have oiled you ought not to have oiled she ought not to have oiled we ought not to have oiled you ought not to have oiled they ought not to have oiled
V-ing perfect
I ought not to have been oiling you ought not to have been oiling she ought not to have been oiling we ought not to have been oiling you ought not to have been oiling they ought not to have been oiling
Interrogative form
Simple form
ought to I oil? ought to you oil? ought to she oil? ought to we oil? ought to you oil? ought to they oil?
V-ing form
ought to I be oiling? ought to you be oiling? ought to she be oiling? ought to we be oiling? ought to you be oiling? ought to they be oiling?
Perfect
ought to I have oiled? ought to you have oiled? ought to she have oiled? ought to we have oiled? ought to you have oiled? ought to they have oiled?
V-ing perfect
ought to I have been oiling? ought to you have been oiling? ought to she have been oiling? ought to we have been oiling? ought to you have been oiling? ought to they have been oiling?
Interro-negative form
Simple form
ought I not to oil? ought you not to oil? ought she not to oil? ought we not to oil? ought you not to oil? ought they not to oil?
V-ing form
ought I not to be oiling? ought you not to be oiling? ought she not to be oiling? ought we not to be oiling? ought you not to be oiling? ought they not to be oiling?
Perfect
ought I not to have oiled? ought you not to have oiled? ought she not to have oiled? ought we not to have oiled? ought you not to have oiled? ought they not to have oiled?
V-ing perfect
ought I not to have been oiling? ought you not to have been oiling? ought she not to have been oiling? ought we not to have been oiling? ought you not to have been oiling? ought they not to have been oiling?