Past tense (Korean)

Korean verbs can be conjugated into the past tense (과거) to describe an action that has already happened.

Polite-informal (해요체)

In polite-informal speech, verbs are brought into the past tense with -았어요, -었어요, or -했어요:

• if the verb stem ends with ㅏ or ㅗ, append -았어요;

• if the verb stem ends with -하, append -했어요;Wiktionary calls this 하-irregular, but many resources seem to consider 하-irregular verbs to be regular.

• otherwise, append -었어요.