Declension table of ?astabhavana

Neuter	Singular	Dual	Plural
Nominative	astabhavanam	astabhavane	astabhavanāni
Vocative	astabhavana	astabhavane	astabhavanāni
Accusative	astabhavanam	astabhavane	astabhavanāni
Instrumental	astabhavanena	astabhavanābhyām	astabhavanaiḥ
Dative	astabhavanāya	astabhavanābhyām	astabhavanebhyaḥ
Ablative	astabhavanāt	astabhavanābhyām	astabhavanebhyaḥ
Genitive	astabhavanasya	astabhavanayoḥ	astabhavanānām
Locative	astabhavane	astabhavanayoḥ	astabhavaneṣu

Compound astabhavana -

Adverb -astabhavanam -astabhavanāt