Declension table of ?yathāpūrvaka

Neuter	Singular	Dual	Plural
Nominative	yathāpūrvakam	yathāpūrvake	yathāpūrvakāṇi
Vocative	yathāpūrvaka	yathāpūrvake	yathāpūrvakāṇi
Accusative	yathāpūrvakam	yathāpūrvake	yathāpūrvakāṇi
Instrumental	yathāpūrvakeṇa	yathāpūrvakābhyām	yathāpūrvakaiḥ
Dative	yathāpūrvakāya	yathāpūrvakābhyām	yathāpūrvakebhyaḥ
Ablative	yathāpūrvakāt	yathāpūrvakābhyām	yathāpūrvakebhyaḥ
Genitive	yathāpūrvakasya	yathāpūrvakayoḥ	yathāpūrvakāṇām
Locative	yathāpūrvake	yathāpūrvakayoḥ	yathāpūrvakeṣu

Compound yathāpūrvaka -

Adverb -yathāpūrvakam -yathāpūrvakāt