Declension table of ?sphāra

Neuter	Singular	Dual	Plural
Nominative	sphāram	sphāre	sphārāṇi
Vocative	sphāra	sphāre	sphārāṇi
Accusative	sphāram	sphāre	sphārāṇi
Instrumental	sphāreṇa	sphārābhyām	sphāraiḥ
Dative	sphārāya	sphārābhyām	sphārebhyaḥ
Ablative	sphārāt	sphārābhyām	sphārebhyaḥ
Genitive	sphārasya	sphārayoḥ	sphārāṇām
Locative	sphāre	sphārayoḥ	sphāreṣu

Compound sphāra -

Adverb -sphāram -sphārāt