Declension table of ?priyamānasa

Neuter	Singular	Dual	Plural
Nominative	priyamānasam	priyamānase	priyamānasāni
Vocative	priyamānasa	priyamānase	priyamānasāni
Accusative	priyamānasam	priyamānase	priyamānasāni
Instrumental	priyamānasena	priyamānasābhyām	priyamānasaiḥ
Dative	priyamānasāya	priyamānasābhyām	priyamānasebhyaḥ
Ablative	priyamānasāt	priyamānasābhyām	priyamānasebhyaḥ
Genitive	priyamānasasya	priyamānasayoḥ	priyamānasānām
Locative	priyamānase	priyamānasayoḥ	priyamānaseṣu

Compound priyamānasa -

Adverb -priyamānasam -priyamānasāt