Declension table of ?tāpayitavya

Neuter	Singular	Dual	Plural
Nominative	tāpayitavyam	tāpayitavye	tāpayitavyāni
Vocative	tāpayitavya	tāpayitavye	tāpayitavyāni
Accusative	tāpayitavyam	tāpayitavye	tāpayitavyāni
Instrumental	tāpayitavyena	tāpayitavyābhyām	tāpayitavyaiḥ
Dative	tāpayitavyāya	tāpayitavyābhyām	tāpayitavyebhyaḥ
Ablative	tāpayitavyāt	tāpayitavyābhyām	tāpayitavyebhyaḥ
Genitive	tāpayitavyasya	tāpayitavyayoḥ	tāpayitavyānām
Locative	tāpayitavye	tāpayitavyayoḥ	tāpayitavyeṣu

Compound tāpayitavya -

Adverb -tāpayitavyam -tāpayitavyāt