Declension table of ?kopayitavya

Masculine	Singular	Dual	Plural
Nominative	kopayitavyaḥ	kopayitavyau	kopayitavyāḥ
Vocative	kopayitavya	kopayitavyau	kopayitavyāḥ
Accusative	kopayitavyam	kopayitavyau	kopayitavyān
Instrumental	kopayitavyena	kopayitavyābhyām	kopayitavyaiḥ kopayitavyebhiḥ
Dative	kopayitavyāya	kopayitavyābhyām	kopayitavyebhyaḥ
Ablative	kopayitavyāt	kopayitavyābhyām	kopayitavyebhyaḥ
Genitive	kopayitavyasya	kopayitavyayoḥ	kopayitavyānām
Locative	kopayitavye	kopayitavyayoḥ	kopayitavyeṣu

Compound kopayitavya -

Adverb -kopayitavyam -kopayitavyāt