I ought to tunnel you ought to tunnel he ought to tunnel we ought to tunnel you ought to tunnel they ought to tunnel
V-ing form
I ought to be tunnelling you ought to be tunnelling he ought to be tunnelling we ought to be tunnelling you ought to be tunnelling they ought to be tunnelling
Perfect
I ought to have tunnelled you ought to have tunnelled he ought to have tunnelled we ought to have tunnelled you ought to have tunnelled they ought to have tunnelled
V-ing perfect
I ought to have been tunnelling you ought to have been tunnelling he ought to have been tunnelling we ought to have been tunnelling you ought to have been tunnelling they ought to have been tunnelling
Negation
Simple form
I ought not to tunnel you ought not to tunnel he ought not to tunnel we ought not to tunnel you ought not to tunnel they ought not to tunnel
V-ing form
I ought not to tunnelling you ought not to tunnelling he ought not to tunnelling we ought not to tunnelling you ought not to tunnelling they ought not to tunnelling
Perfect
I ought not to have tunnelled you ought not to have tunnelled he ought not to have tunnelled we ought not to have tunnelled you ought not to have tunnelled they ought not to have tunnelled
V-ing perfect
I ought not to have been tunnelling you ought not to have been tunnelling he ought not to have been tunnelling we ought not to have been tunnelling you ought not to have been tunnelling they ought not to have been tunnelling
Interrogative form
Simple form
ought to I tunnel? ought to you tunnel? ought to he tunnel? ought to we tunnel? ought to you tunnel? ought to they tunnel?
V-ing form
ought to I be tunnelling? ought to you be tunnelling? ought to he be tunnelling? ought to we be tunnelling? ought to you be tunnelling? ought to they be tunnelling?
Perfect
ought to I have tunnelled? ought to you have tunnelled? ought to he have tunnelled? ought to we have tunnelled? ought to you have tunnelled? ought to they have tunnelled?
V-ing perfect
ought to I have been tunnelling? ought to you have been tunnelling? ought to he have been tunnelling? ought to we have been tunnelling? ought to you have been tunnelling? ought to they have been tunnelling?
Interro-negative form
Simple form
ought I not to tunnel? ought you not to tunnel? ought he not to tunnel? ought we not to tunnel? ought you not to tunnel? ought they not to tunnel?
V-ing form
ought I not to be tunnelling? ought you not to be tunnelling? ought he not to be tunnelling? ought we not to be tunnelling? ought you not to be tunnelling? ought they not to be tunnelling?
Perfect
ought I not to have tunnelled? ought you not to have tunnelled? ought he not to have tunnelled? ought we not to have tunnelled? ought you not to have tunnelled? ought they not to have tunnelled?
V-ing perfect
ought I not to have been tunnelling? ought you not to have been tunnelling? ought he not to have been tunnelling? ought we not to have been tunnelling? ought you not to have been tunnelling? ought they not to have been tunnelling?