English verb conjugation
SHOULD UNNAIL

Regular verb: unnail - unnailed - unnailed

Affirmation

Simple form	V-ing form
I should unnail you should unnail he should unnail we should unnail you should unnail they should unnail	I should be unnailing you should be unnailing he should be unnailing we should be unnailing you should be unnailing they should be unnailing
Perfect	V-ing perfect
I should have unnailed you should have unnailed he should have unnailed we should have unnailed you should have unnailed they should have unnailed	I should have been unnailing you should have been unnailing he should have been unnailing we should have been unnailing you should have been unnailing they should have been unnailing

Negation

Simple form	V-ing form
I should not unnail you should not unnail he should not unnail we should not unnail you should not unnail they should not unnail	I should not be unnailing you should not be unnailing he should not be unnailing we should not be unnailing you should not be unnailing they should not be unnailing
Perfect	V-ing perfect
I should not have unnailed you should not have unnailed he should not have unnailed we should not have unnailed you should not have unnailed they should not have unnailed	I should not have been unnailing you should not have been unnailing he should not have been unnailing we should not have been unnailing you should not have been unnailing they should not have been unnailing

Interrogative form

Simple form	V-ing form
should I unnail? should you unnail? should he unnail? should we unnail? should you unnail? should they unnail?	should I be unnailing? should you be unnailing? should he be unnailing? should we be unnailing? should you be unnailing? should they be unnailing?
Perfect	V-ing perfect
should I have unnailed? should you have unnailed? should he have unnailed? should we have unnailed? should you have unnailed? should they have unnailed?	should I have been unnailing? should you have been unnailing? should he have been unnailing? should we have been unnailing? should you have been unnailing? should they have been unnailing?

Interro-negative form

Simple form	V-ing form
should I not unnail? should you not unnail? should he not unnail? should we not unnail? should you not unnail? should they not unnail?	should I not be unnailing? should you not be unnailing? should he not be unnailing? should we not be unnailing? should you not be unnailing? should they not be unnailing?
Perfect	V-ing perfect
should I not have unnailed? should you not have unnailed? should he not have unnailed? should we not have unnailed? should you not have unnailed? should they not have unnailed?	should I not have been unnailing? should you not have been unnailing? should he not have been unnailing? should we not have been unnailing? should you not have been unnailing? should they not have been unnailing?