English verb conjugation
SHOULD RETUNE

Regular verb: retune - retuned - retuned

Affirmation

Simple form	V-ing form
I'd retune you'd retune he'd retune we'd retune you'd retune they'd retune	I'd be retuning you'd be retuning he'd be retuning we'd be retuning you'd be retuning they'd be retuning
Perfect	V-ing perfect
I should've retuned you should've retuned he should've retuned we should've retuned you should've retuned they should've retuned	I should've been retuning you should've been retuning he should've been retuning we should've been retuning you should've been retuning they should've been retuning

Negation

Simple form	V-ing form
I shouldn't retune you shouldn't retune he shouldn't retune we shouldn't retune you shouldn't retune they shouldn't retune	I shouldn't be retuning you shouldn't be retuning he shouldn't be retuning we shouldn't be retuning you shouldn't be retuning they shouldn't be retuning
Perfect	V-ing perfect
I shouldn't have retuned you shouldn't have retuned he shouldn't have retuned we shouldn't have retuned you shouldn't have retuned they shouldn't have retuned	I shouldn't have been retuning you shouldn't have been retuning he shouldn't have been retuning we shouldn't have been retuning you shouldn't have been retuning they shouldn't have been retuning

Interrogative form

Simple form	V-ing form
should I retune? should you retune? should he retune? should we retune? should you retune? should they retune?	should I be retuning? should you be retuning? should he be retuning? should we be retuning? should you be retuning? should they be retuning?
Perfect	V-ing perfect
should I have retuned? should you have retuned? should he have retuned? should we have retuned? should you have retuned? should they have retuned?	should I have been retuning? should you have been retuning? should he have been retuning? should we have been retuning? should you have been retuning? should they have been retuning?

Interro-negative form

Simple form	V-ing form
shouldn't I retune? shouldn't you retune? shouldn't he retune? shouldn't we retune? shouldn't you retune? shouldn't they retune?	shouldn't I be retuning? shouldn't you be retuning? shouldn't he be retuning? shouldn't we be retuning? shouldn't you be retuning? shouldn't they be retuning?
Perfect	V-ing perfect
shouldn't I have retuned? shouldn't you have retuned? shouldn't he have retuned? shouldn't we have retuned? shouldn't you have retuned? shouldn't they have retuned?	shouldn't I have been retuning? shouldn't you have been retuning? shouldn't he have been retuning? shouldn't we have been retuning? shouldn't you have been retuning? shouldn't they have been retuning?