English verb conjugation
SHOULD PROTEST

Regular verb: protest - protested - protested

Affirmation

Simple form	V-ing form
I'd protest you'd protest he'd protest we'd protest you'd protest they'd protest	I'd be protesting you'd be protesting he'd be protesting we'd be protesting you'd be protesting they'd be protesting
Perfect	V-ing perfect
I should've protested you should've protested he should've protested we should've protested you should've protested they should've protested	I should've been protesting you should've been protesting he should've been protesting we should've been protesting you should've been protesting they should've been protesting

Negation

Simple form	V-ing form
I shouldn't protest you shouldn't protest he shouldn't protest we shouldn't protest you shouldn't protest they shouldn't protest	I shouldn't be protesting you shouldn't be protesting he shouldn't be protesting we shouldn't be protesting you shouldn't be protesting they shouldn't be protesting
Perfect	V-ing perfect
I shouldn't have protested you shouldn't have protested he shouldn't have protested we shouldn't have protested you shouldn't have protested they shouldn't have protested	I shouldn't have been protesting you shouldn't have been protesting he shouldn't have been protesting we shouldn't have been protesting you shouldn't have been protesting they shouldn't have been protesting

Interrogative form

Simple form	V-ing form
should I protest? should you protest? should he protest? should we protest? should you protest? should they protest?	should I be protesting? should you be protesting? should he be protesting? should we be protesting? should you be protesting? should they be protesting?
Perfect	V-ing perfect
should I have protested? should you have protested? should he have protested? should we have protested? should you have protested? should they have protested?	should I have been protesting? should you have been protesting? should he have been protesting? should we have been protesting? should you have been protesting? should they have been protesting?

Interro-negative form

Simple form	V-ing form
shouldn't I protest? shouldn't you protest? shouldn't he protest? shouldn't we protest? shouldn't you protest? shouldn't they protest?	shouldn't I be protesting? shouldn't you be protesting? shouldn't he be protesting? shouldn't we be protesting? shouldn't you be protesting? shouldn't they be protesting?
Perfect	V-ing perfect
shouldn't I have protested? shouldn't you have protested? shouldn't he have protested? shouldn't we have protested? shouldn't you have protested? shouldn't they have protested?	shouldn't I have been protesting? shouldn't you have been protesting? shouldn't he have been protesting? shouldn't we have been protesting? shouldn't you have been protesting? shouldn't they have been protesting?