Declension table of ?saṃśayitavya

Neuter	Singular	Dual	Plural
Nominative	saṃśayitavyam	saṃśayitavye	saṃśayitavyāni
Vocative	saṃśayitavya	saṃśayitavye	saṃśayitavyāni
Accusative	saṃśayitavyam	saṃśayitavye	saṃśayitavyāni
Instrumental	saṃśayitavyena	saṃśayitavyābhyām	saṃśayitavyaiḥ
Dative	saṃśayitavyāya	saṃśayitavyābhyām	saṃśayitavyebhyaḥ
Ablative	saṃśayitavyāt	saṃśayitavyābhyām	saṃśayitavyebhyaḥ
Genitive	saṃśayitavyasya	saṃśayitavyayoḥ	saṃśayitavyānām
Locative	saṃśayitavye	saṃśayitavyayoḥ	saṃśayitavyeṣu

Compound saṃśayitavya -

Adverb -saṃśayitavyam -saṃśayitavyāt