Declension table of ?kalptavya

Masculine	Singular	Dual	Plural
Nominative	kalptavyaḥ	kalptavyau	kalptavyāḥ
Vocative	kalptavya	kalptavyau	kalptavyāḥ
Accusative	kalptavyam	kalptavyau	kalptavyān
Instrumental	kalptavyena	kalptavyābhyām	kalptavyaiḥ kalptavyebhiḥ
Dative	kalptavyāya	kalptavyābhyām	kalptavyebhyaḥ
Ablative	kalptavyāt	kalptavyābhyām	kalptavyebhyaḥ
Genitive	kalptavyasya	kalptavyayoḥ	kalptavyānām
Locative	kalptavye	kalptavyayoḥ	kalptavyeṣu

Compound kalptavya -

Adverb -kalptavyam -kalptavyāt