Declension table of ?śvapacatva

Neuter	Singular	Dual	Plural
Nominative	śvapacatvam	śvapacatve	śvapacatvāni
Vocative	śvapacatva	śvapacatve	śvapacatvāni
Accusative	śvapacatvam	śvapacatve	śvapacatvāni
Instrumental	śvapacatvena	śvapacatvābhyām	śvapacatvaiḥ
Dative	śvapacatvāya	śvapacatvābhyām	śvapacatvebhyaḥ
Ablative	śvapacatvāt	śvapacatvābhyām	śvapacatvebhyaḥ
Genitive	śvapacatvasya	śvapacatvayoḥ	śvapacatvānām
Locative	śvapacatve	śvapacatvayoḥ	śvapacatveṣu

Compound śvapacatva -

Adverb -śvapacatvam -śvapacatvāt