I ought to tunnel you ought to tunnel she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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?