English verb conjugation
SHOULD SUBSTANTIATE

Regular verb: substantiate - substantiated - substantiated

Affirmation

Simple form	V-ing form
I'd substantiate you'd substantiate he'd substantiate we'd substantiate you'd substantiate they'd substantiate	I'd be substantiating you'd be substantiating he'd be substantiating we'd be substantiating you'd be substantiating they'd be substantiating
Perfect	V-ing perfect
I should've substantiated you should've substantiated he should've substantiated we should've substantiated you should've substantiated they should've substantiated	I should've been substantiating you should've been substantiating he should've been substantiating we should've been substantiating you should've been substantiating they should've been substantiating

Negation

Simple form	V-ing form
I shouldn't substantiate you shouldn't substantiate he shouldn't substantiate we shouldn't substantiate you shouldn't substantiate they shouldn't substantiate	I shouldn't be substantiating you shouldn't be substantiating he shouldn't be substantiating we shouldn't be substantiating you shouldn't be substantiating they shouldn't be substantiating
Perfect	V-ing perfect
I shouldn't have substantiated you shouldn't have substantiated he shouldn't have substantiated we shouldn't have substantiated you shouldn't have substantiated they shouldn't have substantiated	I shouldn't have been substantiating you shouldn't have been substantiating he shouldn't have been substantiating we shouldn't have been substantiating you shouldn't have been substantiating they shouldn't have been substantiating

Interrogative form

Simple form	V-ing form
should I substantiate? should you substantiate? should he substantiate? should we substantiate? should you substantiate? should they substantiate?	should I be substantiating? should you be substantiating? should he be substantiating? should we be substantiating? should you be substantiating? should they be substantiating?
Perfect	V-ing perfect
should I have substantiated? should you have substantiated? should he have substantiated? should we have substantiated? should you have substantiated? should they have substantiated?	should I have been substantiating? should you have been substantiating? should he have been substantiating? should we have been substantiating? should you have been substantiating? should they have been substantiating?

Interro-negative form

Simple form	V-ing form
shouldn't I substantiate? shouldn't you substantiate? shouldn't he substantiate? shouldn't we substantiate? shouldn't you substantiate? shouldn't they substantiate?	shouldn't I be substantiating? shouldn't you be substantiating? shouldn't he be substantiating? shouldn't we be substantiating? shouldn't you be substantiating? shouldn't they be substantiating?
Perfect	V-ing perfect
shouldn't I have substantiated? shouldn't you have substantiated? shouldn't he have substantiated? shouldn't we have substantiated? shouldn't you have substantiated? shouldn't they have substantiated?	shouldn't I have been substantiating? shouldn't you have been substantiating? shouldn't he have been substantiating? shouldn't we have been substantiating? shouldn't you have been substantiating? shouldn't they have been substantiating?