I'd be tunnelling you'd be tunnelling he'd be tunnelling we'd be tunnelling you'd be tunnelling they'd be tunnelling
Perfect
I should've tunnelled you should've tunnelled he should've tunnelled we should've tunnelled you should've tunnelled they should've tunnelled
V-ing perfect
I should've been tunnelling you should've been tunnelling he should've been tunnelling we should've been tunnelling you should've been tunnelling they should've been tunnelling
Negation
Simple form
I shouldn't tunnel you shouldn't tunnel he shouldn't tunnel we shouldn't tunnel you shouldn't tunnel they shouldn't tunnel
V-ing form
I shouldn't be tunnelling you shouldn't be tunnelling he shouldn't be tunnelling we shouldn't be tunnelling you shouldn't be tunnelling they shouldn't be tunnelling
Perfect
I shouldn't have tunnelled you shouldn't have tunnelled he shouldn't have tunnelled we shouldn't have tunnelled you shouldn't have tunnelled they shouldn't have tunnelled
V-ing perfect
I shouldn't have been tunnelling you shouldn't have been tunnelling he shouldn't have been tunnelling we shouldn't have been tunnelling you shouldn't have been tunnelling they shouldn't have been tunnelling
Interrogative form
Simple form
should I tunnel? should you tunnel? should he tunnel? should we tunnel? should you tunnel? should they tunnel?
V-ing form
should I be tunnelling? should you be tunnelling? should he be tunnelling? should we be tunnelling? should you be tunnelling? should they be tunnelling?
Perfect
should I have tunnelled? should you have tunnelled? should he have tunnelled? should we have tunnelled? should you have tunnelled? should they have tunnelled?
V-ing perfect
should I have been tunnelling? should you have been tunnelling? should he have been tunnelling? should we have been tunnelling? should you have been tunnelling? should they have been tunnelling?
Interro-negative form
Simple form
shouldn't I tunnel? shouldn't you tunnel? shouldn't he tunnel? shouldn't we tunnel? shouldn't you tunnel? shouldn't they tunnel?
V-ing form
shouldn't I be tunnelling? shouldn't you be tunnelling? shouldn't he be tunnelling? shouldn't we be tunnelling? shouldn't you be tunnelling? shouldn't they be tunnelling?
Perfect
shouldn't I have tunnelled? shouldn't you have tunnelled? shouldn't he have tunnelled? shouldn't we have tunnelled? shouldn't you have tunnelled? shouldn't they have tunnelled?
V-ing perfect
shouldn't I have been tunnelling? shouldn't you have been tunnelling? shouldn't he have been tunnelling? shouldn't we have been tunnelling? shouldn't you have been tunnelling? shouldn't they have been tunnelling?