Declension table of ?tvakatpitṛka

Masculine	Singular	Dual	Plural
Nominative	tvakatpitṛkaḥ	tvakatpitṛkau	tvakatpitṛkāḥ
Vocative	tvakatpitṛka	tvakatpitṛkau	tvakatpitṛkāḥ
Accusative	tvakatpitṛkam	tvakatpitṛkau	tvakatpitṛkān
Instrumental	tvakatpitṛkeṇa	tvakatpitṛkābhyām	tvakatpitṛkaiḥ tvakatpitṛkebhiḥ
Dative	tvakatpitṛkāya	tvakatpitṛkābhyām	tvakatpitṛkebhyaḥ
Ablative	tvakatpitṛkāt	tvakatpitṛkābhyām	tvakatpitṛkebhyaḥ
Genitive	tvakatpitṛkasya	tvakatpitṛkayoḥ	tvakatpitṛkāṇām
Locative	tvakatpitṛke	tvakatpitṛkayoḥ	tvakatpitṛkeṣu

Compound tvakatpitṛka -

Adverb -tvakatpitṛkam -tvakatpitṛkāt