Declension table of tanmayatva

Neuter	Singular	Dual	Plural
Nominative	tanmayatvam	tanmayatve	tanmayatvāni
Vocative	tanmayatva	tanmayatve	tanmayatvāni
Accusative	tanmayatvam	tanmayatve	tanmayatvāni
Instrumental	tanmayatvena	tanmayatvābhyām	tanmayatvaiḥ
Dative	tanmayatvāya	tanmayatvābhyām	tanmayatvebhyaḥ
Ablative	tanmayatvāt	tanmayatvābhyām	tanmayatvebhyaḥ
Genitive	tanmayatvasya	tanmayatvayoḥ	tanmayatvānām
Locative	tanmayatve	tanmayatvayoḥ	tanmayatveṣu

Compound tanmayatva -

Adverb -tanmayatvam -tanmayatvāt