-어야

Etymology
From, from ; equivalent to the addition of the particle  to the infinitive suffix. Cognate with 🇨🇬 which preserves the original consonant. Compare.

Suffix

 * 1) only if:
 * 2) no matter:
 * 1) no matter:
 * 1) no matter:
 * 1) no matter:

Usage notes

 * For vowel harmony, contractions, and allomorphy, see.
 * Since expresses condition or futility, the past tense marker  is not used in the second clause.
 * Similarly to, cannot be followed by imperative or propositive clauses.
 * When expresses condition, it is most likely to be followed by  or  to express obligation or necessity.
 * To intensify the meaning of the condition, and  are added to.
 * In the second sense, the suffix is usually accompanied by or is used in the interrogative construction.