English verb conjugation
SHOULD LOOK

Regular verb: look - looked - looked

Affirmation

Simple form	V-ing form
I'd look you'd look he'd look we'd look you'd look they'd look	I'd be looking you'd be looking he'd be looking we'd be looking you'd be looking they'd be looking
Perfect	V-ing perfect
I should've looked you should've looked he should've looked we should've looked you should've looked they should've looked	I should've been looking you should've been looking he should've been looking we should've been looking you should've been looking they should've been looking

Negation

Simple form	V-ing form
I shouldn't look you shouldn't look he shouldn't look we shouldn't look you shouldn't look they shouldn't look	I shouldn't be looking you shouldn't be looking he shouldn't be looking we shouldn't be looking you shouldn't be looking they shouldn't be looking
Perfect	V-ing perfect
I shouldn't have looked you shouldn't have looked he shouldn't have looked we shouldn't have looked you shouldn't have looked they shouldn't have looked	I shouldn't have been looking you shouldn't have been looking he shouldn't have been looking we shouldn't have been looking you shouldn't have been looking they shouldn't have been looking

Interrogative form

Simple form	V-ing form
should I look? should you look? should he look? should we look? should you look? should they look?	should I be looking? should you be looking? should he be looking? should we be looking? should you be looking? should they be looking?
Perfect	V-ing perfect
should I have looked? should you have looked? should he have looked? should we have looked? should you have looked? should they have looked?	should I have been looking? should you have been looking? should he have been looking? should we have been looking? should you have been looking? should they have been looking?

Interro-negative form

Simple form	V-ing form
shouldn't I look? shouldn't you look? shouldn't he look? shouldn't we look? shouldn't you look? shouldn't they look?	shouldn't I be looking? shouldn't you be looking? shouldn't he be looking? shouldn't we be looking? shouldn't you be looking? shouldn't they be looking?
Perfect	V-ing perfect
shouldn't I have looked? shouldn't you have looked? shouldn't he have looked? shouldn't we have looked? shouldn't you have looked? shouldn't they have looked?	shouldn't I have been looking? shouldn't you have been looking? shouldn't he have been looking? shouldn't we have been looking? shouldn't you have been looking? shouldn't they have been looking?