Declension table of ?ātmamāna

Neuter	Singular	Dual	Plural
Nominative	ātmamānam	ātmamāne	ātmamānāni
Vocative	ātmamāna	ātmamāne	ātmamānāni
Accusative	ātmamānam	ātmamāne	ātmamānāni
Instrumental	ātmamānena	ātmamānābhyām	ātmamānaiḥ
Dative	ātmamānāya	ātmamānābhyām	ātmamānebhyaḥ
Ablative	ātmamānāt	ātmamānābhyām	ātmamānebhyaḥ
Genitive	ātmamānasya	ātmamānayoḥ	ātmamānānām
Locative	ātmamāne	ātmamānayoḥ	ātmamāneṣu

Compound ātmamāna -

Adverb -ātmamānam -ātmamānāt