English verb conjugation
SHOULD COLLAPSE

Regular verb: collapse - collapsed - collapsed

Affirmation

Simple form	V-ing form
I should collapse you should collapse he should collapse we should collapse you should collapse they should collapse	I should be collapsing you should be collapsing he should be collapsing we should be collapsing you should be collapsing they should be collapsing
Perfect	V-ing perfect
I should have collapsed you should have collapsed he should have collapsed we should have collapsed you should have collapsed they should have collapsed	I should have been collapsing you should have been collapsing he should have been collapsing we should have been collapsing you should have been collapsing they should have been collapsing

Negation

Simple form	V-ing form
I should not collapse you should not collapse he should not collapse we should not collapse you should not collapse they should not collapse	I should not be collapsing you should not be collapsing he should not be collapsing we should not be collapsing you should not be collapsing they should not be collapsing
Perfect	V-ing perfect
I should not have collapsed you should not have collapsed he should not have collapsed we should not have collapsed you should not have collapsed they should not have collapsed	I should not have been collapsing you should not have been collapsing he should not have been collapsing we should not have been collapsing you should not have been collapsing they should not have been collapsing

Interrogative form

Simple form	V-ing form
should I collapse? should you collapse? should he collapse? should we collapse? should you collapse? should they collapse?	should I be collapsing? should you be collapsing? should he be collapsing? should we be collapsing? should you be collapsing? should they be collapsing?
Perfect	V-ing perfect
should I have collapsed? should you have collapsed? should he have collapsed? should we have collapsed? should you have collapsed? should they have collapsed?	should I have been collapsing? should you have been collapsing? should he have been collapsing? should we have been collapsing? should you have been collapsing? should they have been collapsing?

Interro-negative form

Simple form	V-ing form
should I not collapse? should you not collapse? should he not collapse? should we not collapse? should you not collapse? should they not collapse?	should I not be collapsing? should you not be collapsing? should he not be collapsing? should we not be collapsing? should you not be collapsing? should they not be collapsing?
Perfect	V-ing perfect
should I not have collapsed? should you not have collapsed? should he not have collapsed? should we not have collapsed? should you not have collapsed? should they not have collapsed?	should I not have been collapsing? should you not have been collapsing? should he not have been collapsing? should we not have been collapsing? should you not have been collapsing? should they not have been collapsing?