Declension table of ?brahmakośa

Masculine	Singular	Dual	Plural
Nominative	brahmakośaḥ	brahmakośau	brahmakośāḥ
Vocative	brahmakośa	brahmakośau	brahmakośāḥ
Accusative	brahmakośam	brahmakośau	brahmakośān
Instrumental	brahmakośena	brahmakośābhyām	brahmakośaiḥ brahmakośebhiḥ
Dative	brahmakośāya	brahmakośābhyām	brahmakośebhyaḥ
Ablative	brahmakośāt	brahmakośābhyām	brahmakośebhyaḥ
Genitive	brahmakośasya	brahmakośayoḥ	brahmakośānām
Locative	brahmakośe	brahmakośayoḥ	brahmakośeṣu

Compound brahmakośa -

Adverb -brahmakośam -brahmakośāt