Declension table of ?lapsyamāna

Neuter	Singular	Dual	Plural
Nominative	lapsyamānam	lapsyamāne	lapsyamānāni
Vocative	lapsyamāna	lapsyamāne	lapsyamānāni
Accusative	lapsyamānam	lapsyamāne	lapsyamānāni
Instrumental	lapsyamānena	lapsyamānābhyām	lapsyamānaiḥ
Dative	lapsyamānāya	lapsyamānābhyām	lapsyamānebhyaḥ
Ablative	lapsyamānāt	lapsyamānābhyām	lapsyamānebhyaḥ
Genitive	lapsyamānasya	lapsyamānayoḥ	lapsyamānānām
Locative	lapsyamāne	lapsyamānayoḥ	lapsyamāneṣu

Compound lapsyamāna -

Adverb -lapsyamānam -lapsyamānāt