English verb conjugation
SHOULD RETUNE

Regular verb: retune - retuned - retuned

Affirmation

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

Negation

Simple form	V-ing form
I should not retune you should not retune he should not retune we should not retune you should not retune they should not retune	I should not be retuning you should not be retuning he should not be retuning we should not be retuning you should not be retuning they should not be retuning
Perfect	V-ing perfect
I should not have retuned you should not have retuned he should not have retuned we should not have retuned you should not have retuned they should not have retuned	I should not have been retuning you should not have been retuning he should not have been retuning we should not have been retuning you should not have been retuning they should not 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
should I not retune? should you not retune? should he not retune? should we not retune? should you not retune? should they not retune?	should I not be retuning? should you not be retuning? should he not be retuning? should we not be retuning? should you not be retuning? should they not be retuning?
Perfect	V-ing perfect
should I not have retuned? should you not have retuned? should he not have retuned? should we not have retuned? should you not have retuned? should they not have retuned?	should I not have been retuning? should you not have been retuning? should he not have been retuning? should we not have been retuning? should you not have been retuning? should they not have been retuning?