答案：I　don't clean my room on the weekend.
翻译：我在周末不打扫卫生
知识点延伸：实义动词的肯定句改为否定句,在该实义动词前面加上助动词do的相应形式don't /
does't / didn't 即可.
谨祝-----
好好学习,天天进步!