English verb conjugation
SHOULD FLAIL

Regular verb: flail - flailed - flailed

Affirmation

Simple form	V-ing form
I should flail you should flail he should flail we should flail you should flail they should flail	I should be flailing you should be flailing he should be flailing we should be flailing you should be flailing they should be flailing
Perfect	V-ing perfect
I should have flailed you should have flailed he should have flailed we should have flailed you should have flailed they should have flailed	I should have been flailing you should have been flailing he should have been flailing we should have been flailing you should have been flailing they should have been flailing

Negation

Simple form	V-ing form
I should not flail you should not flail he should not flail we should not flail you should not flail they should not flail	I should not be flailing you should not be flailing he should not be flailing we should not be flailing you should not be flailing they should not be flailing
Perfect	V-ing perfect
I should not have flailed you should not have flailed he should not have flailed we should not have flailed you should not have flailed they should not have flailed	I should not have been flailing you should not have been flailing he should not have been flailing we should not have been flailing you should not have been flailing they should not have been flailing

Interrogative form

Simple form	V-ing form
should I flail? should you flail? should he flail? should we flail? should you flail? should they flail?	should I be flailing? should you be flailing? should he be flailing? should we be flailing? should you be flailing? should they be flailing?
Perfect	V-ing perfect
should I have flailed? should you have flailed? should he have flailed? should we have flailed? should you have flailed? should they have flailed?	should I have been flailing? should you have been flailing? should he have been flailing? should we have been flailing? should you have been flailing? should they have been flailing?

Interro-negative form

Simple form	V-ing form
should I not flail? should you not flail? should he not flail? should we not flail? should you not flail? should they not flail?	should I not be flailing? should you not be flailing? should he not be flailing? should we not be flailing? should you not be flailing? should they not be flailing?
Perfect	V-ing perfect
should I not have flailed? should you not have flailed? should he not have flailed? should we not have flailed? should you not have flailed? should they not have flailed?	should I not have been flailing? should you not have been flailing? should he not have been flailing? should we not have been flailing? should you not have been flailing? should they not have been flailing?