Declension table of ?svādayitavya

Neuter	Singular	Dual	Plural
Nominative	svādayitavyam	svādayitavye	svādayitavyāni
Vocative	svādayitavya	svādayitavye	svādayitavyāni
Accusative	svādayitavyam	svādayitavye	svādayitavyāni
Instrumental	svādayitavyena	svādayitavyābhyām	svādayitavyaiḥ
Dative	svādayitavyāya	svādayitavyābhyām	svādayitavyebhyaḥ
Ablative	svādayitavyāt	svādayitavyābhyām	svādayitavyebhyaḥ
Genitive	svādayitavyasya	svādayitavyayoḥ	svādayitavyānām
Locative	svādayitavye	svādayitavyayoḥ	svādayitavyeṣu

Compound svādayitavya -

Adverb -svādayitavyam -svādayitavyāt