Declension table of ?īśatva

Neuter	Singular	Dual	Plural
Nominative	īśatvam	īśatve	īśatvāni
Vocative	īśatva	īśatve	īśatvāni
Accusative	īśatvam	īśatve	īśatvāni
Instrumental	īśatvena	īśatvābhyām	īśatvaiḥ
Dative	īśatvāya	īśatvābhyām	īśatvebhyaḥ
Ablative	īśatvāt	īśatvābhyām	īśatvebhyaḥ
Genitive	īśatvasya	īśatvayoḥ	īśatvānām
Locative	īśatve	īśatvayoḥ	īśatveṣu

Compound īśatva -

Adverb -īśatvam -īśatvāt