Declension table of ?samayitavya

Neuter	Singular	Dual	Plural
Nominative	samayitavyam	samayitavye	samayitavyāni
Vocative	samayitavya	samayitavye	samayitavyāni
Accusative	samayitavyam	samayitavye	samayitavyāni
Instrumental	samayitavyena	samayitavyābhyām	samayitavyaiḥ
Dative	samayitavyāya	samayitavyābhyām	samayitavyebhyaḥ
Ablative	samayitavyāt	samayitavyābhyām	samayitavyebhyaḥ
Genitive	samayitavyasya	samayitavyayoḥ	samayitavyānām
Locative	samayitavye	samayitavyayoḥ	samayitavyeṣu

Compound samayitavya -

Adverb -samayitavyam -samayitavyāt