Declension table of ?kṛṣṇakarman

Masculine	Singular	Dual	Plural
Nominative	kṛṣṇakarmā	kṛṣṇakarmāṇau	kṛṣṇakarmāṇaḥ
Vocative	kṛṣṇakarman	kṛṣṇakarmāṇau	kṛṣṇakarmāṇaḥ
Accusative	kṛṣṇakarmāṇam	kṛṣṇakarmāṇau	kṛṣṇakarmaṇaḥ
Instrumental	kṛṣṇakarmaṇā	kṛṣṇakarmabhyām	kṛṣṇakarmabhiḥ
Dative	kṛṣṇakarmaṇe	kṛṣṇakarmabhyām	kṛṣṇakarmabhyaḥ
Ablative	kṛṣṇakarmaṇaḥ	kṛṣṇakarmabhyām	kṛṣṇakarmabhyaḥ
Genitive	kṛṣṇakarmaṇaḥ	kṛṣṇakarmaṇoḥ	kṛṣṇakarmaṇām
Locative	kṛṣṇakarmaṇi	kṛṣṇakarmaṇoḥ	kṛṣṇakarmasu

Compound kṛṣṇakarma -

Adverb -kṛṣṇakarmam