Nouns change before a postposition
A key Indo-Aryan feature (the oblique case).
| Noun type | Direct → Oblique | With postposition |
|---|---|---|
| masc. -ā | لڑکا → لڑکے | لڑکے کو |
| masc. (other) | گھر → گھر | گھر میں |
| plural (all) | -ون -on | لڑکوں کو |
| feminine | کتاب → کتاب | کتاب میں |
Before any postposition.
The reason the form changes.