I'd be overlooking you'd be overlooking he'd be overlooking we'd be overlooking you'd be overlooking they'd be overlooking
Perfect
I should've overlooked you should've overlooked he should've overlooked we should've overlooked you should've overlooked they should've overlooked
V-ing perfect
I should've been overlooking you should've been overlooking he should've been overlooking we should've been overlooking you should've been overlooking they should've been overlooking
Negation
Simple form
I shouldn't overlook you shouldn't overlook he shouldn't overlook we shouldn't overlook you shouldn't overlook they shouldn't overlook
V-ing form
I shouldn't be overlooking you shouldn't be overlooking he shouldn't be overlooking we shouldn't be overlooking you shouldn't be overlooking they shouldn't be overlooking
Perfect
I shouldn't have overlooked you shouldn't have overlooked he shouldn't have overlooked we shouldn't have overlooked you shouldn't have overlooked they shouldn't have overlooked
V-ing perfect
I shouldn't have been overlooking you shouldn't have been overlooking he shouldn't have been overlooking we shouldn't have been overlooking you shouldn't have been overlooking they shouldn't have been overlooking
Interrogative form
Simple form
should I overlook? should you overlook? should he overlook? should we overlook? should you overlook? should they overlook?
V-ing form
should I be overlooking? should you be overlooking? should he be overlooking? should we be overlooking? should you be overlooking? should they be overlooking?
Perfect
should I have overlooked? should you have overlooked? should he have overlooked? should we have overlooked? should you have overlooked? should they have overlooked?
V-ing perfect
should I have been overlooking? should you have been overlooking? should he have been overlooking? should we have been overlooking? should you have been overlooking? should they have been overlooking?
Interro-negative form
Simple form
shouldn't I overlook? shouldn't you overlook? shouldn't he overlook? shouldn't we overlook? shouldn't you overlook? shouldn't they overlook?
V-ing form
shouldn't I be overlooking? shouldn't you be overlooking? shouldn't he be overlooking? shouldn't we be overlooking? shouldn't you be overlooking? shouldn't they be overlooking?
Perfect
shouldn't I have overlooked? shouldn't you have overlooked? shouldn't he have overlooked? shouldn't we have overlooked? shouldn't you have overlooked? shouldn't they have overlooked?
V-ing perfect
shouldn't I have been overlooking? shouldn't you have been overlooking? shouldn't he have been overlooking? shouldn't we have been overlooking? shouldn't you have been overlooking? shouldn't they have been overlooking?