Declension table of ?pasayitavya

Neuter	Singular	Dual	Plural
Nominative	pasayitavyam	pasayitavye	pasayitavyāni
Vocative	pasayitavya	pasayitavye	pasayitavyāni
Accusative	pasayitavyam	pasayitavye	pasayitavyāni
Instrumental	pasayitavyena	pasayitavyābhyām	pasayitavyaiḥ
Dative	pasayitavyāya	pasayitavyābhyām	pasayitavyebhyaḥ
Ablative	pasayitavyāt	pasayitavyābhyām	pasayitavyebhyaḥ
Genitive	pasayitavyasya	pasayitavyayoḥ	pasayitavyānām
Locative	pasayitavye	pasayitavyayoḥ	pasayitavyeṣu

Compound pasayitavya -

Adverb -pasayitavyam -pasayitavyāt