Declension table of ?mithunatva

Neuter	Singular	Dual	Plural
Nominative	mithunatvam	mithunatve	mithunatvāni
Vocative	mithunatva	mithunatve	mithunatvāni
Accusative	mithunatvam	mithunatve	mithunatvāni
Instrumental	mithunatvena	mithunatvābhyām	mithunatvaiḥ
Dative	mithunatvāya	mithunatvābhyām	mithunatvebhyaḥ
Ablative	mithunatvāt	mithunatvābhyām	mithunatvebhyaḥ
Genitive	mithunatvasya	mithunatvayoḥ	mithunatvānām
Locative	mithunatve	mithunatvayoḥ	mithunatveṣu

Compound mithunatva -

Adverb -mithunatvam -mithunatvāt