Declension table of saumanasa

Neuter	Singular	Dual	Plural
Nominative	saumanasam	saumanase	saumanasāni
Vocative	saumanasa	saumanase	saumanasāni
Accusative	saumanasam	saumanase	saumanasāni
Instrumental	saumanasena	saumanasābhyām	saumanasaiḥ
Dative	saumanasāya	saumanasābhyām	saumanasebhyaḥ
Ablative	saumanasāt	saumanasābhyām	saumanasebhyaḥ
Genitive	saumanasasya	saumanasayoḥ	saumanasānām
Locative	saumanase	saumanasayoḥ	saumanaseṣu

Compound saumanasa -

Adverb -saumanasam -saumanasāt