English verb conjugation
SHOULD PREALTER

Regular verb: prealter - prealtered - prealtered

Affirmation

Simple form	V-ing form
I should prealter you should prealter he should prealter we should prealter you should prealter they should prealter	I should be prealtering you should be prealtering he should be prealtering we should be prealtering you should be prealtering they should be prealtering
Perfect	V-ing perfect
I should have prealtered you should have prealtered he should have prealtered we should have prealtered you should have prealtered they should have prealtered	I should have been prealtering you should have been prealtering he should have been prealtering we should have been prealtering you should have been prealtering they should have been prealtering

Negation

Simple form	V-ing form
I should not prealter you should not prealter he should not prealter we should not prealter you should not prealter they should not prealter	I should not be prealtering you should not be prealtering he should not be prealtering we should not be prealtering you should not be prealtering they should not be prealtering
Perfect	V-ing perfect
I should not have prealtered you should not have prealtered he should not have prealtered we should not have prealtered you should not have prealtered they should not have prealtered	I should not have been prealtering you should not have been prealtering he should not have been prealtering we should not have been prealtering you should not have been prealtering they should not have been prealtering

Interrogative form

Simple form	V-ing form
should I prealter? should you prealter? should he prealter? should we prealter? should you prealter? should they prealter?	should I be prealtering? should you be prealtering? should he be prealtering? should we be prealtering? should you be prealtering? should they be prealtering?
Perfect	V-ing perfect
should I have prealtered? should you have prealtered? should he have prealtered? should we have prealtered? should you have prealtered? should they have prealtered?	should I have been prealtering? should you have been prealtering? should he have been prealtering? should we have been prealtering? should you have been prealtering? should they have been prealtering?

Interro-negative form

Simple form	V-ing form
should I not prealter? should you not prealter? should he not prealter? should we not prealter? should you not prealter? should they not prealter?	should I not be prealtering? should you not be prealtering? should he not be prealtering? should we not be prealtering? should you not be prealtering? should they not be prealtering?
Perfect	V-ing perfect
should I not have prealtered? should you not have prealtered? should he not have prealtered? should we not have prealtered? should you not have prealtered? should they not have prealtered?	should I not have been prealtering? should you not have been prealtering? should he not have been prealtering? should we not have been prealtering? should you not have been prealtering? should they not have been prealtering?