English verb conjugation
SHOULD ENDOW

Regular verb: endow - endowed - endowed

Affirmation

Simple form	V-ing form
I'd endow you'd endow he'd endow we'd endow you'd endow they'd endow	I'd be endowing you'd be endowing he'd be endowing we'd be endowing you'd be endowing they'd be endowing
Perfect	V-ing perfect
I should've endowed you should've endowed he should've endowed we should've endowed you should've endowed they should've endowed	I should've been endowing you should've been endowing he should've been endowing we should've been endowing you should've been endowing they should've been endowing

Negation

Simple form	V-ing form
I shouldn't endow you shouldn't endow he shouldn't endow we shouldn't endow you shouldn't endow they shouldn't endow	I shouldn't be endowing you shouldn't be endowing he shouldn't be endowing we shouldn't be endowing you shouldn't be endowing they shouldn't be endowing
Perfect	V-ing perfect
I shouldn't have endowed you shouldn't have endowed he shouldn't have endowed we shouldn't have endowed you shouldn't have endowed they shouldn't have endowed	I shouldn't have been endowing you shouldn't have been endowing he shouldn't have been endowing we shouldn't have been endowing you shouldn't have been endowing they shouldn't have been endowing

Interrogative form

Simple form	V-ing form
should I endow? should you endow? should he endow? should we endow? should you endow? should they endow?	should I be endowing? should you be endowing? should he be endowing? should we be endowing? should you be endowing? should they be endowing?
Perfect	V-ing perfect
should I have endowed? should you have endowed? should he have endowed? should we have endowed? should you have endowed? should they have endowed?	should I have been endowing? should you have been endowing? should he have been endowing? should we have been endowing? should you have been endowing? should they have been endowing?

Interro-negative form

Simple form	V-ing form
shouldn't I endow? shouldn't you endow? shouldn't he endow? shouldn't we endow? shouldn't you endow? shouldn't they endow?	shouldn't I be endowing? shouldn't you be endowing? shouldn't he be endowing? shouldn't we be endowing? shouldn't you be endowing? shouldn't they be endowing?
Perfect	V-ing perfect
shouldn't I have endowed? shouldn't you have endowed? shouldn't he have endowed? shouldn't we have endowed? shouldn't you have endowed? shouldn't they have endowed?	shouldn't I have been endowing? shouldn't you have been endowing? shouldn't he have been endowing? shouldn't we have been endowing? shouldn't you have been endowing? shouldn't they have been endowing?