Declension table of yatna

Masculine	Singular	Dual	Plural
Nominative	yatnaḥ	yatnau	yatnāḥ
Vocative	yatna	yatnau	yatnāḥ
Accusative	yatnam	yatnau	yatnān
Instrumental	yatnena	yatnābhyām	yatnaiḥ yatnebhiḥ
Dative	yatnāya	yatnābhyām	yatnebhyaḥ
Ablative	yatnāt	yatnābhyām	yatnebhyaḥ
Genitive	yatnasya	yatnayoḥ	yatnānām
Locative	yatne	yatnayoḥ	yatneṣu

Compound yatna -

Adverb -yatnam -yatnāt