A-stems
A-stems (/ə/ or /aː/) comprise the largest class of nouns. As a rule, nouns belonging to this class, with the uninflected stem ending in short-a (/ə/), are either masculine or neuter. Nouns ending in long-A (/aː/) are almost always feminine. A-stem adjectives take the masculine and neuter in short-a (/ə/), and feminine in long-A (/aː/) in their stems. This class is so big because it also comprises the Proto-Indo-European o-stems.
| Masculine (rāma-) | Neuter (āsya- 'mouth') | Feminine (kānta- 'beloved') | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Singular | Dual | Plural | Singular | Dual | Plural | Singular | Dual | Plural | |
| Nominative | rā́mas | rā́māu | rā́mās | āsyàm | āsyè | āsyā̀ni | kāntā | kānte | kāntās |
| Accusative | rā́mam | rā́māu | rā́mān | āsyàm | āsyè | āsyā̀ni | kāntām | kānte | kāntās |
| Instrumental | rā́mena | rā́mābhyām | rā́māis | āsyèna | āsyā̀bhyām | āsyāìs | kāntayā | kāntābhyām | kāntābhis |
| Dative | rā́māya | rā́mābhyām | rā́mebhyas | āsyā̀ya | āsyā̀bhyām | āsyèbhyas | kāntāyai | kāntābhyām | kāntābhyās |
| Ablative | rā́māt | rā́mābhyām | rā́mebhyas | āsyā̀t | āsyā̀bhyām | āsyèbhyas | kāntāyās | kāntābhyām | kāntābhyās |
| Genitive | rā́masya | rā́mayos | rā́mānām | āsyàsya | āsyàyos | āsyā̀nām | kāntāyās | kāntayos | kāntānām |
| Locative | rā́me | rā́mayos | rā́meṣu | āsyè | āsyàyos | āsyèṣu | kāntāyām | kāntayos | kāntāsu |
| Vocative | rā́ma | rā́mau | rā́mās | ā́sya | āsyè | āsyā̀ni | kānte | kānte | kāntās |
Read more about this topic: Sanskrit Grammar, Nominal Inflection