Declension table of ?yatnāntara

Neuter	Singular	Dual	Plural
Nominative	yatnāntaram	yatnāntare	yatnāntarāṇi
Vocative	yatnāntara	yatnāntare	yatnāntarāṇi
Accusative	yatnāntaram	yatnāntare	yatnāntarāṇi
Instrumental	yatnāntareṇa	yatnāntarābhyām	yatnāntaraiḥ
Dative	yatnāntarāya	yatnāntarābhyām	yatnāntarebhyaḥ
Ablative	yatnāntarāt	yatnāntarābhyām	yatnāntarebhyaḥ
Genitive	yatnāntarasya	yatnāntarayoḥ	yatnāntarāṇām
Locative	yatnāntare	yatnāntarayoḥ	yatnāntareṣu

Compound yatnāntara -

Adverb -yatnāntaram -yatnāntarāt