Declension table of ?sayyamāna

Neuter	Singular	Dual	Plural
Nominative	sayyamānam	sayyamāne	sayyamānāni
Vocative	sayyamāna	sayyamāne	sayyamānāni
Accusative	sayyamānam	sayyamāne	sayyamānāni
Instrumental	sayyamānena	sayyamānābhyām	sayyamānaiḥ
Dative	sayyamānāya	sayyamānābhyām	sayyamānebhyaḥ
Ablative	sayyamānāt	sayyamānābhyām	sayyamānebhyaḥ
Genitive	sayyamānasya	sayyamānayoḥ	sayyamānānām
Locative	sayyamāne	sayyamānayoḥ	sayyamāneṣu

Compound sayyamāna -

Adverb -sayyamānam -sayyamānāt