Declension table of kṛṣṇatara

Neuter	Singular	Dual	Plural
Nominative	kṛṣṇataram	kṛṣṇatare	kṛṣṇatarāṇi
Vocative	kṛṣṇatara	kṛṣṇatare	kṛṣṇatarāṇi
Accusative	kṛṣṇataram	kṛṣṇatare	kṛṣṇatarāṇi
Instrumental	kṛṣṇatareṇa	kṛṣṇatarābhyām	kṛṣṇataraiḥ
Dative	kṛṣṇatarāya	kṛṣṇatarābhyām	kṛṣṇatarebhyaḥ
Ablative	kṛṣṇatarāt	kṛṣṇatarābhyām	kṛṣṇatarebhyaḥ
Genitive	kṛṣṇatarasya	kṛṣṇatarayoḥ	kṛṣṇatarāṇām
Locative	kṛṣṇatare	kṛṣṇatarayoḥ	kṛṣṇatareṣu

Compound kṛṣṇatara -

Adverb -kṛṣṇataram -kṛṣṇatarāt