Declension table of ?āpayitavya

Neuter	Singular	Dual	Plural
Nominative	āpayitavyam	āpayitavye	āpayitavyāni
Vocative	āpayitavya	āpayitavye	āpayitavyāni
Accusative	āpayitavyam	āpayitavye	āpayitavyāni
Instrumental	āpayitavyena	āpayitavyābhyām	āpayitavyaiḥ
Dative	āpayitavyāya	āpayitavyābhyām	āpayitavyebhyaḥ
Ablative	āpayitavyāt	āpayitavyābhyām	āpayitavyebhyaḥ
Genitive	āpayitavyasya	āpayitavyayoḥ	āpayitavyānām
Locative	āpayitavye	āpayitavyayoḥ	āpayitavyeṣu

Compound āpayitavya -

Adverb -āpayitavyam -āpayitavyāt