Declension table of ?kṛtakartavya

Neuter	Singular	Dual	Plural
Nominative	kṛtakartavyam	kṛtakartavye	kṛtakartavyāni
Vocative	kṛtakartavya	kṛtakartavye	kṛtakartavyāni
Accusative	kṛtakartavyam	kṛtakartavye	kṛtakartavyāni
Instrumental	kṛtakartavyena	kṛtakartavyābhyām	kṛtakartavyaiḥ
Dative	kṛtakartavyāya	kṛtakartavyābhyām	kṛtakartavyebhyaḥ
Ablative	kṛtakartavyāt	kṛtakartavyābhyām	kṛtakartavyebhyaḥ
Genitive	kṛtakartavyasya	kṛtakartavyayoḥ	kṛtakartavyānām
Locative	kṛtakartavye	kṛtakartavyayoḥ	kṛtakartavyeṣu

Compound kṛtakartavya -

Adverb -kṛtakartavyam -kṛtakartavyāt