Declension table of ?poṇayitavya

Neuter	Singular	Dual	Plural
Nominative	poṇayitavyam	poṇayitavye	poṇayitavyāni
Vocative	poṇayitavya	poṇayitavye	poṇayitavyāni
Accusative	poṇayitavyam	poṇayitavye	poṇayitavyāni
Instrumental	poṇayitavyena	poṇayitavyābhyām	poṇayitavyaiḥ
Dative	poṇayitavyāya	poṇayitavyābhyām	poṇayitavyebhyaḥ
Ablative	poṇayitavyāt	poṇayitavyābhyām	poṇayitavyebhyaḥ
Genitive	poṇayitavyasya	poṇayitavyayoḥ	poṇayitavyānām
Locative	poṇayitavye	poṇayitavyayoḥ	poṇayitavyeṣu

Compound poṇayitavya -

Adverb -poṇayitavyam -poṇayitavyāt