Declension table of ?ardhayitavya

Neuter	Singular	Dual	Plural
Nominative	ardhayitavyam	ardhayitavye	ardhayitavyāni
Vocative	ardhayitavya	ardhayitavye	ardhayitavyāni
Accusative	ardhayitavyam	ardhayitavye	ardhayitavyāni
Instrumental	ardhayitavyena	ardhayitavyābhyām	ardhayitavyaiḥ
Dative	ardhayitavyāya	ardhayitavyābhyām	ardhayitavyebhyaḥ
Ablative	ardhayitavyāt	ardhayitavyābhyām	ardhayitavyebhyaḥ
Genitive	ardhayitavyasya	ardhayitavyayoḥ	ardhayitavyānām
Locative	ardhayitavye	ardhayitavyayoḥ	ardhayitavyeṣu

Compound ardhayitavya -

Adverb -ardhayitavyam -ardhayitavyāt