I ought to fell you ought to fell she ought to fell we ought to fell you ought to fell they ought to fell
V-ing form
I ought to be felling you ought to be felling she ought to be felling we ought to be felling you ought to be felling they ought to be felling
Perfect
I ought to have felled you ought to have felled she ought to have felled we ought to have felled you ought to have felled they ought to have felled
V-ing perfect
I ought to have been felling you ought to have been felling she ought to have been felling we ought to have been felling you ought to have been felling they ought to have been felling
Negation
Simple form
I ought not to fell you ought not to fell she ought not to fell we ought not to fell you ought not to fell they ought not to fell
V-ing form
I ought not to felling you ought not to felling she ought not to felling we ought not to felling you ought not to felling they ought not to felling
Perfect
I ought not to have felled you ought not to have felled she ought not to have felled we ought not to have felled you ought not to have felled they ought not to have felled
V-ing perfect
I ought not to have been felling you ought not to have been felling she ought not to have been felling we ought not to have been felling you ought not to have been felling they ought not to have been felling
Interrogative form
Simple form
ought to I fell? ought to you fell? ought to she fell? ought to we fell? ought to you fell? ought to they fell?
V-ing form
ought to I be felling? ought to you be felling? ought to she be felling? ought to we be felling? ought to you be felling? ought to they be felling?
Perfect
ought to I have felled? ought to you have felled? ought to she have felled? ought to we have felled? ought to you have felled? ought to they have felled?
V-ing perfect
ought to I have been felling? ought to you have been felling? ought to she have been felling? ought to we have been felling? ought to you have been felling? ought to they have been felling?
Interro-negative form
Simple form
ought I not to fell? ought you not to fell? ought she not to fell? ought we not to fell? ought you not to fell? ought they not to fell?
V-ing form
ought I not to be felling? ought you not to be felling? ought she not to be felling? ought we not to be felling? ought you not to be felling? ought they not to be felling?
Perfect
ought I not to have felled? ought you not to have felled? ought she not to have felled? ought we not to have felled? ought you not to have felled? ought they not to have felled?
V-ing perfect
ought I not to have been felling? ought you not to have been felling? ought she not to have been felling? ought we not to have been felling? ought you not to have been felling? ought they not to have been felling?