Declension table of kṛṣṇatara

Masculine	Singular	Dual	Plural
Nominative	kṛṣṇataraḥ	kṛṣṇatarau	kṛṣṇatarāḥ
Vocative	kṛṣṇatara	kṛṣṇatarau	kṛṣṇatarāḥ
Accusative	kṛṣṇataram	kṛṣṇatarau	kṛṣṇatarān
Instrumental	kṛṣṇatareṇa	kṛṣṇatarābhyām	kṛṣṇataraiḥ kṛṣṇatarebhiḥ
Dative	kṛṣṇatarāya	kṛṣṇatarābhyām	kṛṣṇatarebhyaḥ
Ablative	kṛṣṇatarāt	kṛṣṇatarābhyām	kṛṣṇatarebhyaḥ
Genitive	kṛṣṇatarasya	kṛṣṇatarayoḥ	kṛṣṇatarāṇām
Locative	kṛṣṇatare	kṛṣṇatarayoḥ	kṛṣṇatareṣu

Compound kṛṣṇatara -

Adverb -kṛṣṇataram -kṛṣṇatarāt