Declension table of ?somaputra

Masculine	Singular	Dual	Plural
Nominative	somaputraḥ	somaputrau	somaputrāḥ
Vocative	somaputra	somaputrau	somaputrāḥ
Accusative	somaputram	somaputrau	somaputrān
Instrumental	somaputreṇa	somaputrābhyām	somaputraiḥ somaputrebhiḥ
Dative	somaputrāya	somaputrābhyām	somaputrebhyaḥ
Ablative	somaputrāt	somaputrābhyām	somaputrebhyaḥ
Genitive	somaputrasya	somaputrayoḥ	somaputrāṇām
Locative	somaputre	somaputrayoḥ	somaputreṣu

Compound somaputra -

Adverb -somaputram -somaputrāt