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