Declension table of ?pratika

Masculine	Singular	Dual	Plural
Nominative	pratikaḥ	pratikau	pratikāḥ
Vocative	pratika	pratikau	pratikāḥ
Accusative	pratikam	pratikau	pratikān
Instrumental	pratikena	pratikābhyām	pratikaiḥ pratikebhiḥ
Dative	pratikāya	pratikābhyām	pratikebhyaḥ
Ablative	pratikāt	pratikābhyām	pratikebhyaḥ
Genitive	pratikasya	pratikayoḥ	pratikānām
Locative	pratike	pratikayoḥ	pratikeṣu

Compound pratika -

Adverb -pratikam -pratikāt