Declension table of ?kṛṣṇagarbha

Masculine	Singular	Dual	Plural
Nominative	kṛṣṇagarbhaḥ	kṛṣṇagarbhau	kṛṣṇagarbhāḥ
Vocative	kṛṣṇagarbha	kṛṣṇagarbhau	kṛṣṇagarbhāḥ
Accusative	kṛṣṇagarbham	kṛṣṇagarbhau	kṛṣṇagarbhān
Instrumental	kṛṣṇagarbheṇa	kṛṣṇagarbhābhyām	kṛṣṇagarbhaiḥ kṛṣṇagarbhebhiḥ
Dative	kṛṣṇagarbhāya	kṛṣṇagarbhābhyām	kṛṣṇagarbhebhyaḥ
Ablative	kṛṣṇagarbhāt	kṛṣṇagarbhābhyām	kṛṣṇagarbhebhyaḥ
Genitive	kṛṣṇagarbhasya	kṛṣṇagarbhayoḥ	kṛṣṇagarbhāṇām
Locative	kṛṣṇagarbhe	kṛṣṇagarbhayoḥ	kṛṣṇagarbheṣu

Compound kṛṣṇagarbha -

Adverb -kṛṣṇagarbham -kṛṣṇagarbhāt