Declension table of ?sayitavya

Masculine	Singular	Dual	Plural
Nominative	sayitavyaḥ	sayitavyau	sayitavyāḥ
Vocative	sayitavya	sayitavyau	sayitavyāḥ
Accusative	sayitavyam	sayitavyau	sayitavyān
Instrumental	sayitavyena	sayitavyābhyām	sayitavyaiḥ sayitavyebhiḥ
Dative	sayitavyāya	sayitavyābhyām	sayitavyebhyaḥ
Ablative	sayitavyāt	sayitavyābhyām	sayitavyebhyaḥ
Genitive	sayitavyasya	sayitavyayoḥ	sayitavyānām
Locative	sayitavye	sayitavyayoḥ	sayitavyeṣu

Compound sayitavya -

Adverb -sayitavyam -sayitavyāt