I would use quit, as it is more readily understood by people. Dictionary.com indicates that both are plausible. Merriam Webster says the same. Looking through Google books, quitted seems to be used synonymously with left, e.g., Plato quitted Athens, where he was adored as a god ... I quitted Manchester, I quitted Mrs. +++++, I quitted ...

The meaning of QUIT is give up. How to use quit in a sentence. Is it quit or resign? Synonym Discussion of Quit.

必应词典为您提供quit的释义，美[kwɪt]，英[kwɪt]，n. 辞职；退出； v. 离开；停止；戒掉；关闭； adj. 被释放；自由的；摆脱了…的；了清债务的； 网络释义： 放弃；退出游戏；退出程序；

QUIT翻译：停止;离开;辞职;放弃。 了解更多。

2024年4月2日 · Quit is the most common form for leaving or stopping, whereas Quitted is an archaic, less used form. Quit is commonly used in both American and British English to denote leaving a place or ceasing an action or habit.

discontinue The lab has discontinued this line of research due to ethical concerns. cease All operations at the company will cease, and the assets will be auctioned off. [ I ] Her assistant …

quit ： 指最终彻底停止某事，有时暗示遭到失败或面临挫折。

2017年6月16日 · quit. resign. 双语例句. 1. quit v. 辞职， 一般多用于非正式场合或者口语表达中。 I quit my job and became a freelancer. 我辞掉了固定的工作，成为了一名自由职业者。 No, I’m not gonna get the report ready. You know what? I quit. 这个报告我不写了, 我不干了。 quit doing sth... …

2023年10月20日 · quit是一个常用的英语单词，它有多种含义和用法，但主要可以分为以下三类： 表示放弃或停止做某事，通常是因为困难或厌倦。 例如： He quit smoking two years ago.（他两年前戒烟了。 She quit the game halfway through.（她中途退出了游戏。 Don’t quit on your dreams.（不要放弃你的梦想。 表示辞职或离开某个职位或组织，通常是因为不满意或有更好的机会。 例如： He quit his job to start his own business.（他辞掉了工作，开始创业。 She quit …

You can't say "I'm quit", but "I quit" is fine. Did you mean "I'm quiet" for the first one? If so, then "I'm quiet" would mean that I'm not speaking or making any noise. "I quit" would mean that I'm giving up on something.