Declension table of ?sevayamāna

Neuter	Singular	Dual	Plural
Nominative	sevayamānam	sevayamāne	sevayamānāni
Vocative	sevayamāna	sevayamāne	sevayamānāni
Accusative	sevayamānam	sevayamāne	sevayamānāni
Instrumental	sevayamānena	sevayamānābhyām	sevayamānaiḥ
Dative	sevayamānāya	sevayamānābhyām	sevayamānebhyaḥ
Ablative	sevayamānāt	sevayamānābhyām	sevayamānebhyaḥ
Genitive	sevayamānasya	sevayamānayoḥ	sevayamānānām
Locative	sevayamāne	sevayamānayoḥ	sevayamāneṣu

Compound sevayamāna -

Adverb -sevayamānam -sevayamānāt