Declension table of ?gacchamāna

Neuter	Singular	Dual	Plural
Nominative	gacchamānam	gacchamāne	gacchamānāni
Vocative	gacchamāna	gacchamāne	gacchamānāni
Accusative	gacchamānam	gacchamāne	gacchamānāni
Instrumental	gacchamānena	gacchamānābhyām	gacchamānaiḥ
Dative	gacchamānāya	gacchamānābhyām	gacchamānebhyaḥ
Ablative	gacchamānāt	gacchamānābhyām	gacchamānebhyaḥ
Genitive	gacchamānasya	gacchamānayoḥ	gacchamānānām
Locative	gacchamāne	gacchamānayoḥ	gacchamāneṣu

Compound gacchamāna -

Adverb -gacchamānam -gacchamānāt