Declension table of śabdatva

Neuter	Singular	Dual	Plural
Nominative	śabdatvam	śabdatve	śabdatvāni
Vocative	śabdatva	śabdatve	śabdatvāni
Accusative	śabdatvam	śabdatve	śabdatvāni
Instrumental	śabdatvena	śabdatvābhyām	śabdatvaiḥ
Dative	śabdatvāya	śabdatvābhyām	śabdatvebhyaḥ
Ablative	śabdatvāt	śabdatvābhyām	śabdatvebhyaḥ
Genitive	śabdatvasya	śabdatvayoḥ	śabdatvānām
Locative	śabdatve	śabdatvayoḥ	śabdatveṣu

Compound śabdatva -

Adverb -śabdatvam -śabdatvāt