Declension table of ?catula

Masculine	Singular	Dual	Plural
Nominative	catulaḥ	catulau	catulāḥ
Vocative	catula	catulau	catulāḥ
Accusative	catulam	catulau	catulān
Instrumental	catulena	catulābhyām	catulaiḥ catulebhiḥ
Dative	catulāya	catulābhyām	catulebhyaḥ
Ablative	catulāt	catulābhyām	catulebhyaḥ
Genitive	catulasya	catulayoḥ	catulānām
Locative	catule	catulayoḥ	catuleṣu

Compound catula -

Adverb -catulam -catulāt