Declension table of ?pitṛkārya

Neuter	Singular	Dual	Plural
Nominative	pitṛkāryam	pitṛkārye	pitṛkāryāṇi
Vocative	pitṛkārya	pitṛkārye	pitṛkāryāṇi
Accusative	pitṛkāryam	pitṛkārye	pitṛkāryāṇi
Instrumental	pitṛkāryeṇa	pitṛkāryābhyām	pitṛkāryaiḥ
Dative	pitṛkāryāya	pitṛkāryābhyām	pitṛkāryebhyaḥ
Ablative	pitṛkāryāt	pitṛkāryābhyām	pitṛkāryebhyaḥ
Genitive	pitṛkāryasya	pitṛkāryayoḥ	pitṛkāryāṇām
Locative	pitṛkārye	pitṛkāryayoḥ	pitṛkāryeṣu

Compound pitṛkārya -

Adverb -pitṛkāryam -pitṛkāryāt