Declension table of ?bṛhadbrahman

Masculine	Singular	Dual	Plural
Nominative	bṛhadbrahmā	bṛhadbrahmāṇau	bṛhadbrahmāṇaḥ
Vocative	bṛhadbrahman	bṛhadbrahmāṇau	bṛhadbrahmāṇaḥ
Accusative	bṛhadbrahmāṇam	bṛhadbrahmāṇau	bṛhadbrahmaṇaḥ
Instrumental	bṛhadbrahmaṇā	bṛhadbrahmabhyām	bṛhadbrahmabhiḥ
Dative	bṛhadbrahmaṇe	bṛhadbrahmabhyām	bṛhadbrahmabhyaḥ
Ablative	bṛhadbrahmaṇaḥ	bṛhadbrahmabhyām	bṛhadbrahmabhyaḥ
Genitive	bṛhadbrahmaṇaḥ	bṛhadbrahmaṇoḥ	bṛhadbrahmaṇām
Locative	bṛhadbrahmaṇi	bṛhadbrahmaṇoḥ	bṛhadbrahmasu

Compound bṛhadbrahma -

Adverb -bṛhadbrahmam