Declension table of ?kṛṣṇāntara

Neuter	Singular	Dual	Plural
Nominative	kṛṣṇāntaram	kṛṣṇāntare	kṛṣṇāntarāṇi
Vocative	kṛṣṇāntara	kṛṣṇāntare	kṛṣṇāntarāṇi
Accusative	kṛṣṇāntaram	kṛṣṇāntare	kṛṣṇāntarāṇi
Instrumental	kṛṣṇāntareṇa	kṛṣṇāntarābhyām	kṛṣṇāntaraiḥ
Dative	kṛṣṇāntarāya	kṛṣṇāntarābhyām	kṛṣṇāntarebhyaḥ
Ablative	kṛṣṇāntarāt	kṛṣṇāntarābhyām	kṛṣṇāntarebhyaḥ
Genitive	kṛṣṇāntarasya	kṛṣṇāntarayoḥ	kṛṣṇāntarāṇām
Locative	kṛṣṇāntare	kṛṣṇāntarayoḥ	kṛṣṇāntareṣu

Compound kṛṣṇāntara -

Adverb -kṛṣṇāntaram -kṛṣṇāntarāt