Declension table of ?saṃśayitavya

Masculine	Singular	Dual	Plural
Nominative	saṃśayitavyaḥ	saṃśayitavyau	saṃśayitavyāḥ
Vocative	saṃśayitavya	saṃśayitavyau	saṃśayitavyāḥ
Accusative	saṃśayitavyam	saṃśayitavyau	saṃśayitavyān
Instrumental	saṃśayitavyena	saṃśayitavyābhyām	saṃśayitavyaiḥ saṃśayitavyebhiḥ
Dative	saṃśayitavyāya	saṃśayitavyābhyām	saṃśayitavyebhyaḥ
Ablative	saṃśayitavyāt	saṃśayitavyābhyām	saṃśayitavyebhyaḥ
Genitive	saṃśayitavyasya	saṃśayitavyayoḥ	saṃśayitavyānām
Locative	saṃśayitavye	saṃśayitavyayoḥ	saṃśayitavyeṣu

Compound saṃśayitavya -

Adverb -saṃśayitavyam -saṃśayitavyāt