Declension table of ?dhakkayitavya

Masculine	Singular	Dual	Plural
Nominative	dhakkayitavyaḥ	dhakkayitavyau	dhakkayitavyāḥ
Vocative	dhakkayitavya	dhakkayitavyau	dhakkayitavyāḥ
Accusative	dhakkayitavyam	dhakkayitavyau	dhakkayitavyān
Instrumental	dhakkayitavyena	dhakkayitavyābhyām	dhakkayitavyaiḥ dhakkayitavyebhiḥ
Dative	dhakkayitavyāya	dhakkayitavyābhyām	dhakkayitavyebhyaḥ
Ablative	dhakkayitavyāt	dhakkayitavyābhyām	dhakkayitavyebhyaḥ
Genitive	dhakkayitavyasya	dhakkayitavyayoḥ	dhakkayitavyānām
Locative	dhakkayitavye	dhakkayitavyayoḥ	dhakkayitavyeṣu

Compound dhakkayitavya -

Adverb -dhakkayitavyam -dhakkayitavyāt