核心结论
在标准英语中，help 后面既可以接 do（不带 to 的不定式），也可以接 to do（带 to 的不定式），但不能直接接 doing（动名词）。
✅ 正确：She helped me (to) clean the room.
❌ 错误：She helped me cleaning the room.
❌ 错误：She helped me cleaning the room.
详细语法规则
help + 宾语 + (to) do something
- “to” 是可选的，在美式英语中常省略，在英式英语中两种都常见。
- 无论是否带 “to”，意思完全相同。
- 被动语态中通常保留 “to”：He was helped to escape.
• Can you help me (to) fix this computer?
• The teacher helped the students (to) understand the lesson.
• I helped my brother move house last weekend.
• The teacher helped the students (to) understand the lesson.
• I helped my brother move house last weekend.
为什么不能用 doing？
“Help” 是一个使役动词（causative verb），表示“协助某人完成某事”。它强调的是“促成结果”，而不是“正在进行的动作”，因此不与动名词（-ing 形式）搭配。
对比其他动词：
- Enjoy 后必须接 doing：I enjoy swimming.
- Help 后必须接 (to) do：I helped him swim.
更多例句
• They helped us (to) organize the event.
• This app helps users (to) learn English faster.
• She was helped (to) recover by her friends.
• Could you help me (to) carry these boxes?
常见误区提醒
有些学习者受中文思维影响，误以为“help + doing”表示“帮忙做某事正在发生”，但英语中这种结构不符合习惯用法。
中文说“帮我打扫房间”，听起来像“正在打扫”，但英文仍用 help me clean the room，而非 help me cleaning。