V了又V【V le yòu V】

V了又V repeats a verb to say the action was done again and again. It describes something that has happened, so 了 is always there, and it often leads to a result in the next clause.

Two-syllable verbs work too.

Where the object goes

Nothing can sit between the two verbs, so the object moves to the front: after 把, or to the start of the sentence as the topic.

• × 他看了信又看信 → 他把信看了又看
• × 我检查了又检查行李 → 我把行李检查了又检查

Not for requests or plans

Because of the 了, the pattern can't ask for future repetition. For "again and again" in an instruction, use 一遍又一遍 or 多.

• × 请你读了又读 → 请你多读几遍