Declension table of ?pāṭhayitavya

Masculine	Singular	Dual	Plural
Nominative	pāṭhayitavyaḥ	pāṭhayitavyau	pāṭhayitavyāḥ
Vocative	pāṭhayitavya	pāṭhayitavyau	pāṭhayitavyāḥ
Accusative	pāṭhayitavyam	pāṭhayitavyau	pāṭhayitavyān
Instrumental	pāṭhayitavyena	pāṭhayitavyābhyām	pāṭhayitavyaiḥ pāṭhayitavyebhiḥ
Dative	pāṭhayitavyāya	pāṭhayitavyābhyām	pāṭhayitavyebhyaḥ
Ablative	pāṭhayitavyāt	pāṭhayitavyābhyām	pāṭhayitavyebhyaḥ
Genitive	pāṭhayitavyasya	pāṭhayitavyayoḥ	pāṭhayitavyānām
Locative	pāṭhayitavye	pāṭhayitavyayoḥ	pāṭhayitavyeṣu

Compound pāṭhayitavya -

Adverb -pāṭhayitavyam -pāṭhayitavyāt