Declension table of kṛṣṇapakṣa

Masculine	Singular	Dual	Plural
Nominative	kṛṣṇapakṣaḥ	kṛṣṇapakṣau	kṛṣṇapakṣāḥ
Vocative	kṛṣṇapakṣa	kṛṣṇapakṣau	kṛṣṇapakṣāḥ
Accusative	kṛṣṇapakṣam	kṛṣṇapakṣau	kṛṣṇapakṣān
Instrumental	kṛṣṇapakṣeṇa	kṛṣṇapakṣābhyām	kṛṣṇapakṣaiḥ kṛṣṇapakṣebhiḥ
Dative	kṛṣṇapakṣāya	kṛṣṇapakṣābhyām	kṛṣṇapakṣebhyaḥ
Ablative	kṛṣṇapakṣāt	kṛṣṇapakṣābhyām	kṛṣṇapakṣebhyaḥ
Genitive	kṛṣṇapakṣasya	kṛṣṇapakṣayoḥ	kṛṣṇapakṣāṇām
Locative	kṛṣṇapakṣe	kṛṣṇapakṣayoḥ	kṛṣṇapakṣeṣu

Compound kṛṣṇapakṣa -

Adverb -kṛṣṇapakṣam -kṛṣṇapakṣāt