English verb conjugation
SHOULD DEFEND

Regular verb: defend - defended - defended

Affirmation

Simple form	V-ing form
I'd defend you'd defend he'd defend we'd defend you'd defend they'd defend	I'd be defending you'd be defending he'd be defending we'd be defending you'd be defending they'd be defending
Perfect	V-ing perfect
I should've defended you should've defended he should've defended we should've defended you should've defended they should've defended	I should've been defending you should've been defending he should've been defending we should've been defending you should've been defending they should've been defending

Negation

Simple form	V-ing form
I shouldn't defend you shouldn't defend he shouldn't defend we shouldn't defend you shouldn't defend they shouldn't defend	I shouldn't be defending you shouldn't be defending he shouldn't be defending we shouldn't be defending you shouldn't be defending they shouldn't be defending
Perfect	V-ing perfect
I shouldn't have defended you shouldn't have defended he shouldn't have defended we shouldn't have defended you shouldn't have defended they shouldn't have defended	I shouldn't have been defending you shouldn't have been defending he shouldn't have been defending we shouldn't have been defending you shouldn't have been defending they shouldn't have been defending

Interrogative form

Simple form	V-ing form
should I defend? should you defend? should he defend? should we defend? should you defend? should they defend?	should I be defending? should you be defending? should he be defending? should we be defending? should you be defending? should they be defending?
Perfect	V-ing perfect
should I have defended? should you have defended? should he have defended? should we have defended? should you have defended? should they have defended?	should I have been defending? should you have been defending? should he have been defending? should we have been defending? should you have been defending? should they have been defending?

Interro-negative form

Simple form	V-ing form
shouldn't I defend? shouldn't you defend? shouldn't he defend? shouldn't we defend? shouldn't you defend? shouldn't they defend?	shouldn't I be defending? shouldn't you be defending? shouldn't he be defending? shouldn't we be defending? shouldn't you be defending? shouldn't they be defending?
Perfect	V-ing perfect
shouldn't I have defended? shouldn't you have defended? shouldn't he have defended? shouldn't we have defended? shouldn't you have defended? shouldn't they have defended?	shouldn't I have been defending? shouldn't you have been defending? shouldn't he have been defending? shouldn't we have been defending? shouldn't you have been defending? shouldn't they have been defending?