Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I ought to ski ski you ought to ski ski she ought to ski ski we ought to ski ski you ought to ski ski they ought to ski ski
V-ing form
I ought to be ski skiing you ought to be ski skiing she ought to be ski skiing we ought to be ski skiing you ought to be ski skiing they ought to be ski skiing
Perfect
I ought to have ski skied you ought to have ski skied she ought to have ski skied we ought to have ski skied you ought to have ski skied they ought to have ski skied
V-ing perfect
I ought to have been ski skiing you ought to have been ski skiing she ought to have been ski skiing we ought to have been ski skiing you ought to have been ski skiing they ought to have been ski skiing
Negation
Simple form
I ought not to ski ski you ought not to ski ski she ought not to ski ski we ought not to ski ski you ought not to ski ski they ought not to ski ski
V-ing form
I ought not to ski skiing you ought not to ski skiing she ought not to ski skiing we ought not to ski skiing you ought not to ski skiing they ought not to ski skiing
Perfect
I ought not to have ski skied you ought not to have ski skied she ought not to have ski skied we ought not to have ski skied you ought not to have ski skied they ought not to have ski skied
V-ing perfect
I ought not to have been ski skiing you ought not to have been ski skiing she ought not to have been ski skiing we ought not to have been ski skiing you ought not to have been ski skiing they ought not to have been ski skiing
Interrogative form
Simple form
ought to I ski ski? ought to you ski ski? ought to she ski ski? ought to we ski ski? ought to you ski ski? ought to they ski ski?
V-ing form
ought to I be ski skiing? ought to you be ski skiing? ought to she be ski skiing? ought to we be ski skiing? ought to you be ski skiing? ought to they be ski skiing?
Perfect
ought to I have ski skied? ought to you have ski skied? ought to she have ski skied? ought to we have ski skied? ought to you have ski skied? ought to they have ski skied?
V-ing perfect
ought to I have been ski skiing? ought to you have been ski skiing? ought to she have been ski skiing? ought to we have been ski skiing? ought to you have been ski skiing? ought to they have been ski skiing?
Interro-negative form
Simple form
ought I not to ski ski? ought you not to ski ski? ought she not to ski ski? ought we not to ski ski? ought you not to ski ski? ought they not to ski ski?
V-ing form
ought I not to be ski skiing? ought you not to be ski skiing? ought she not to be ski skiing? ought we not to be ski skiing? ought you not to be ski skiing? ought they not to be ski skiing?
Perfect
ought I not to have ski skied? ought you not to have ski skied? ought she not to have ski skied? ought we not to have ski skied? ought you not to have ski skied? ought they not to have ski skied?
V-ing perfect
ought I not to have been ski skiing? ought you not to have been ski skiing? ought she not to have been ski skiing? ought we not to have been ski skiing? ought you not to have been ski skiing? ought they not to have been ski skiing?