Declension table of ?kṛṣṇayāma

Neuter	Singular	Dual	Plural
Nominative	kṛṣṇayāmam	kṛṣṇayāme	kṛṣṇayāmāni
Vocative	kṛṣṇayāma	kṛṣṇayāme	kṛṣṇayāmāni
Accusative	kṛṣṇayāmam	kṛṣṇayāme	kṛṣṇayāmāni
Instrumental	kṛṣṇayāmena	kṛṣṇayāmābhyām	kṛṣṇayāmaiḥ
Dative	kṛṣṇayāmāya	kṛṣṇayāmābhyām	kṛṣṇayāmebhyaḥ
Ablative	kṛṣṇayāmāt	kṛṣṇayāmābhyām	kṛṣṇayāmebhyaḥ
Genitive	kṛṣṇayāmasya	kṛṣṇayāmayoḥ	kṛṣṇayāmānām
Locative	kṛṣṇayāme	kṛṣṇayāmayoḥ	kṛṣṇayāmeṣu

Compound kṛṣṇayāma -

Adverb -kṛṣṇayāmam -kṛṣṇayāmāt