Declension table of ?apattra

Neuter	Singular	Dual	Plural
Nominative	apattram	apattre	apattrāṇi
Vocative	apattra	apattre	apattrāṇi
Accusative	apattram	apattre	apattrāṇi
Instrumental	apattreṇa	apattrābhyām	apattraiḥ
Dative	apattrāya	apattrābhyām	apattrebhyaḥ
Ablative	apattrāt	apattrābhyām	apattrebhyaḥ
Genitive	apattrasya	apattrayoḥ	apattrāṇām
Locative	apattre	apattrayoḥ	apattreṣu

Compound apattra -

Adverb -apattram -apattrāt