Declension table of ?manasyitavya

Neuter	Singular	Dual	Plural
Nominative	manasyitavyam	manasyitavye	manasyitavyāni
Vocative	manasyitavya	manasyitavye	manasyitavyāni
Accusative	manasyitavyam	manasyitavye	manasyitavyāni
Instrumental	manasyitavyena	manasyitavyābhyām	manasyitavyaiḥ
Dative	manasyitavyāya	manasyitavyābhyām	manasyitavyebhyaḥ
Ablative	manasyitavyāt	manasyitavyābhyām	manasyitavyebhyaḥ
Genitive	manasyitavyasya	manasyitavyayoḥ	manasyitavyānām
Locative	manasyitavye	manasyitavyayoḥ	manasyitavyeṣu

Compound manasyitavya -

Adverb -manasyitavyam -manasyitavyāt