English verb conjugation
SHOULD TUNNEL

Regular verb: tunnel - tunnelled - tunnelled

Affirmation

Simple form	V-ing form
I'd tunnel you'd tunnel he'd tunnel we'd tunnel you'd tunnel they'd tunnel	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	V-ing 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	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	V-ing 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	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	V-ing 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	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	V-ing form
should I tunnel? should you tunnel? should he tunnel? should we tunnel? should you tunnel? should they tunnel?	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	V-ing 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?	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	V-ing 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?	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	V-ing 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?	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?