English verb conjugation
SHOULD RESPOND

Regular verb: respond - responded - responded

Affirmation

Simple form	V-ing form
I'd respond you'd respond he'd respond we'd respond you'd respond they'd respond	I'd be responding you'd be responding he'd be responding we'd be responding you'd be responding they'd be responding
Perfect	V-ing perfect
I should've responded you should've responded he should've responded we should've responded you should've responded they should've responded	I should've been responding you should've been responding he should've been responding we should've been responding you should've been responding they should've been responding

Negation

Simple form	V-ing form
I shouldn't respond you shouldn't respond he shouldn't respond we shouldn't respond you shouldn't respond they shouldn't respond	I shouldn't be responding you shouldn't be responding he shouldn't be responding we shouldn't be responding you shouldn't be responding they shouldn't be responding
Perfect	V-ing perfect
I shouldn't have responded you shouldn't have responded he shouldn't have responded we shouldn't have responded you shouldn't have responded they shouldn't have responded	I shouldn't have been responding you shouldn't have been responding he shouldn't have been responding we shouldn't have been responding you shouldn't have been responding they shouldn't have been responding

Interrogative form

Simple form	V-ing form
should I respond? should you respond? should he respond? should we respond? should you respond? should they respond?	should I be responding? should you be responding? should he be responding? should we be responding? should you be responding? should they be responding?
Perfect	V-ing perfect
should I have responded? should you have responded? should he have responded? should we have responded? should you have responded? should they have responded?	should I have been responding? should you have been responding? should he have been responding? should we have been responding? should you have been responding? should they have been responding?

Interro-negative form

Simple form	V-ing form
shouldn't I respond? shouldn't you respond? shouldn't he respond? shouldn't we respond? shouldn't you respond? shouldn't they respond?	shouldn't I be responding? shouldn't you be responding? shouldn't he be responding? shouldn't we be responding? shouldn't you be responding? shouldn't they be responding?
Perfect	V-ing perfect
shouldn't I have responded? shouldn't you have responded? shouldn't he have responded? shouldn't we have responded? shouldn't you have responded? shouldn't they have responded?	shouldn't I have been responding? shouldn't you have been responding? shouldn't he have been responding? shouldn't we have been responding? shouldn't you have been responding? shouldn't they have been responding?