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 oughtn't to tunnel you oughtn't to tunnel he oughtn't to tunnel we oughtn't to tunnel you oughtn't to tunnel they oughtn't to tunnel
V-ing form
I oughtn't to be tunnelling you oughtn't to be tunnelling he oughtn't to be tunnelling we oughtn't to be tunnelling you oughtn't to be tunnelling they oughtn't to be tunnelling
Perfect
I oughtn't to have tunnelled you oughtn't to have tunnelled he oughtn't to have tunnelled we oughtn't to have tunnelled you oughtn't to have tunnelled they oughtn't to have tunnelled
V-ing perfect
I oughtn't to have been tunnelling you oughtn't to have been tunnelling he oughtn't to have been tunnelling we oughtn't to have been tunnelling you oughtn't to have been tunnelling they oughtn't 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
oughtn't I to tunnel? oughtn't you to tunnel? oughtn't he to tunnel? oughtn't we to tunnel? oughtn't you to tunnel? oughtn't they to tunnel?
V-ing form
oughtn't I to be tunnelling? oughtn't you to be tunnelling? oughtn't he to be tunnelling? oughtn't we to be tunnelling? oughtn't you to be tunnelling? oughtn't they to be tunnelling?
Perfect
oughtn't I to have tunnelled? oughtn't you to have tunnelled? oughtn't he to have tunnelled? oughtn't we to have tunnelled? oughtn't you to have tunnelled? oughtn't they to have tunnelled?
V-ing perfect
oughtn't I to have been tunnelling? oughtn't you to have been tunnelling? oughtn't he to have been tunnelling? oughtn't we to have been tunnelling? oughtn't you to have been tunnelling? oughtn't they to have been tunnelling?