Declension table of ?dharmatattva

Neuter	Singular	Dual	Plural
Nominative	dharmatattvam	dharmatattve	dharmatattvāni
Vocative	dharmatattva	dharmatattve	dharmatattvāni
Accusative	dharmatattvam	dharmatattve	dharmatattvāni
Instrumental	dharmatattvena	dharmatattvābhyām	dharmatattvaiḥ
Dative	dharmatattvāya	dharmatattvābhyām	dharmatattvebhyaḥ
Ablative	dharmatattvāt	dharmatattvābhyām	dharmatattvebhyaḥ
Genitive	dharmatattvasya	dharmatattvayoḥ	dharmatattvānām
Locative	dharmatattve	dharmatattvayoḥ	dharmatattveṣu

Compound dharmatattva -

Adverb -dharmatattvam -dharmatattvāt