Declension table of ?kumbitavya

Neuter	Singular	Dual	Plural
Nominative	kumbitavyam	kumbitavye	kumbitavyāni
Vocative	kumbitavya	kumbitavye	kumbitavyāni
Accusative	kumbitavyam	kumbitavye	kumbitavyāni
Instrumental	kumbitavyena	kumbitavyābhyām	kumbitavyaiḥ
Dative	kumbitavyāya	kumbitavyābhyām	kumbitavyebhyaḥ
Ablative	kumbitavyāt	kumbitavyābhyām	kumbitavyebhyaḥ
Genitive	kumbitavyasya	kumbitavyayoḥ	kumbitavyānām
Locative	kumbitavye	kumbitavyayoḥ	kumbitavyeṣu

Compound kumbitavya -

Adverb -kumbitavyam -kumbitavyāt