Declension table of sāntva

Neuter	Singular	Dual	Plural
Nominative	sāntvam	sāntve	sāntvāni
Vocative	sāntva	sāntve	sāntvāni
Accusative	sāntvam	sāntve	sāntvāni
Instrumental	sāntvena	sāntvābhyām	sāntvaiḥ
Dative	sāntvāya	sāntvābhyām	sāntvebhyaḥ
Ablative	sāntvāt	sāntvābhyām	sāntvebhyaḥ
Genitive	sāntvasya	sāntvayoḥ	sāntvānām
Locative	sāntve	sāntvayoḥ	sāntveṣu

Compound sāntva -

Adverb -sāntvam -sāntvāt