Declension table of ?spartavya

Neuter	Singular	Dual	Plural
Nominative	spartavyam	spartavye	spartavyāni
Vocative	spartavya	spartavye	spartavyāni
Accusative	spartavyam	spartavye	spartavyāni
Instrumental	spartavyena	spartavyābhyām	spartavyaiḥ
Dative	spartavyāya	spartavyābhyām	spartavyebhyaḥ
Ablative	spartavyāt	spartavyābhyām	spartavyebhyaḥ
Genitive	spartavyasya	spartavyayoḥ	spartavyānām
Locative	spartavye	spartavyayoḥ	spartavyeṣu

Compound spartavya -

Adverb -spartavyam -spartavyāt