Declension table of ?hetvantara

Neuter	Singular	Dual	Plural
Nominative	hetvantaram	hetvantare	hetvantarāṇi
Vocative	hetvantara	hetvantare	hetvantarāṇi
Accusative	hetvantaram	hetvantare	hetvantarāṇi
Instrumental	hetvantareṇa	hetvantarābhyām	hetvantaraiḥ
Dative	hetvantarāya	hetvantarābhyām	hetvantarebhyaḥ
Ablative	hetvantarāt	hetvantarābhyām	hetvantarebhyaḥ
Genitive	hetvantarasya	hetvantarayoḥ	hetvantarāṇām
Locative	hetvantare	hetvantarayoḥ	hetvantareṣu

Compound hetvantara -

Adverb -hetvantaram -hetvantarāt