Declension table of ?dravya

Masculine	Singular	Dual	Plural
Nominative	dravyaḥ	dravyau	dravyāḥ
Vocative	dravya	dravyau	dravyāḥ
Accusative	dravyam	dravyau	dravyān
Instrumental	dravyeṇa	dravyābhyām	dravyaiḥ dravyebhiḥ
Dative	dravyāya	dravyābhyām	dravyebhyaḥ
Ablative	dravyāt	dravyābhyām	dravyebhyaḥ
Genitive	dravyasya	dravyayoḥ	dravyāṇām
Locative	dravye	dravyayoḥ	dravyeṣu

Compound dravya -

Adverb -dravyam -dravyāt