English verb conjugation
SHOULD RETROSPECT

Regular verb: retrospect - retrospected - retrospected

Affirmation

Simple form	V-ing form
I'd retrospect you'd retrospect he'd retrospect we'd retrospect you'd retrospect they'd retrospect	I'd be retrospecting you'd be retrospecting he'd be retrospecting we'd be retrospecting you'd be retrospecting they'd be retrospecting
Perfect	V-ing perfect
I should've retrospected you should've retrospected he should've retrospected we should've retrospected you should've retrospected they should've retrospected	I should've been retrospecting you should've been retrospecting he should've been retrospecting we should've been retrospecting you should've been retrospecting they should've been retrospecting

Negation

Simple form	V-ing form
I shouldn't retrospect you shouldn't retrospect he shouldn't retrospect we shouldn't retrospect you shouldn't retrospect they shouldn't retrospect	I shouldn't be retrospecting you shouldn't be retrospecting he shouldn't be retrospecting we shouldn't be retrospecting you shouldn't be retrospecting they shouldn't be retrospecting
Perfect	V-ing perfect
I shouldn't have retrospected you shouldn't have retrospected he shouldn't have retrospected we shouldn't have retrospected you shouldn't have retrospected they shouldn't have retrospected	I shouldn't have been retrospecting you shouldn't have been retrospecting he shouldn't have been retrospecting we shouldn't have been retrospecting you shouldn't have been retrospecting they shouldn't have been retrospecting

Interrogative form

Simple form	V-ing form
should I retrospect? should you retrospect? should he retrospect? should we retrospect? should you retrospect? should they retrospect?	should I be retrospecting? should you be retrospecting? should he be retrospecting? should we be retrospecting? should you be retrospecting? should they be retrospecting?
Perfect	V-ing perfect
should I have retrospected? should you have retrospected? should he have retrospected? should we have retrospected? should you have retrospected? should they have retrospected?	should I have been retrospecting? should you have been retrospecting? should he have been retrospecting? should we have been retrospecting? should you have been retrospecting? should they have been retrospecting?

Interro-negative form

Simple form	V-ing form
shouldn't I retrospect? shouldn't you retrospect? shouldn't he retrospect? shouldn't we retrospect? shouldn't you retrospect? shouldn't they retrospect?	shouldn't I be retrospecting? shouldn't you be retrospecting? shouldn't he be retrospecting? shouldn't we be retrospecting? shouldn't you be retrospecting? shouldn't they be retrospecting?
Perfect	V-ing perfect
shouldn't I have retrospected? shouldn't you have retrospected? shouldn't he have retrospected? shouldn't we have retrospected? shouldn't you have retrospected? shouldn't they have retrospected?	shouldn't I have been retrospecting? shouldn't you have been retrospecting? shouldn't he have been retrospecting? shouldn't we have been retrospecting? shouldn't you have been retrospecting? shouldn't they have been retrospecting?