Declension table of ?gacchamāna

Masculine	Singular	Dual	Plural
Nominative	gacchamānaḥ	gacchamānau	gacchamānāḥ
Vocative	gacchamāna	gacchamānau	gacchamānāḥ
Accusative	gacchamānam	gacchamānau	gacchamānān
Instrumental	gacchamānena	gacchamānābhyām	gacchamānaiḥ gacchamānebhiḥ
Dative	gacchamānāya	gacchamānābhyām	gacchamānebhyaḥ
Ablative	gacchamānāt	gacchamānābhyām	gacchamānebhyaḥ
Genitive	gacchamānasya	gacchamānayoḥ	gacchamānānām
Locative	gacchamāne	gacchamānayoḥ	gacchamāneṣu

Compound gacchamāna -

Adverb -gacchamānam -gacchamānāt