Declension table of ?sphātavya

Masculine	Singular	Dual	Plural
Nominative	sphātavyaḥ	sphātavyau	sphātavyāḥ
Vocative	sphātavya	sphātavyau	sphātavyāḥ
Accusative	sphātavyam	sphātavyau	sphātavyān
Instrumental	sphātavyena	sphātavyābhyām	sphātavyaiḥ sphātavyebhiḥ
Dative	sphātavyāya	sphātavyābhyām	sphātavyebhyaḥ
Ablative	sphātavyāt	sphātavyābhyām	sphātavyebhyaḥ
Genitive	sphātavyasya	sphātavyayoḥ	sphātavyānām
Locative	sphātavye	sphātavyayoḥ	sphātavyeṣu

Compound sphātavya -

Adverb -sphātavyam -sphātavyāt