Declension table of ?trapayitavya

Neuter	Singular	Dual	Plural
Nominative	trapayitavyam	trapayitavye	trapayitavyāni
Vocative	trapayitavya	trapayitavye	trapayitavyāni
Accusative	trapayitavyam	trapayitavye	trapayitavyāni
Instrumental	trapayitavyena	trapayitavyābhyām	trapayitavyaiḥ
Dative	trapayitavyāya	trapayitavyābhyām	trapayitavyebhyaḥ
Ablative	trapayitavyāt	trapayitavyābhyām	trapayitavyebhyaḥ
Genitive	trapayitavyasya	trapayitavyayoḥ	trapayitavyānām
Locative	trapayitavye	trapayitavyayoḥ	trapayitavyeṣu

Compound trapayitavya -

Adverb -trapayitavyam -trapayitavyāt