英语 to后动词怎么判断是ing形式还是原型 to后面接什么？动词原形还是ing形式？

\u600e\u4e48\u77e5\u9053\u53e5\u5b50\u5f00\u5934\u52a8\u8bcd\u7528to+\uff0c\u8fd8\u662fing\uff0c\u8fd8\u662f\u539f\u578b\uff1f

to+\u52a8\u8bcd\u539f\u578b\u4f5c\u4e3b\u8bed\u65f6\u4e00\u822c\u8868\u76ee\u7684\uff0c\u53bb\u3002\u3002\u3002\u3002\u3002\u3002\u4e5f\u5c31\u662f\u76ee\u7684\u72b6\u8bed\u524d\u7f6e\uff0c\u4f46\u7528\u7684\u5f88\u5c11\uff0c\u4e00\u822c\u90fd\u662f\u7528\u5f62\u5f0f\u4e3b\u8bed\u52a8\u8bcding\u5c31\u662f\u52a8\u540d\u8bcd\uff0c\u4e5f\u5c31\u662f\u540d\u8bcd\uff0c\u56e0\u4e3a\u52a8\u8bcd\u4e0d\u80fd\u4f5c\u4e3b\u8bed\uff0c\u6240\u4ee5\u52a0\u4e0a\u4e86ing

\u201cto\u201d\u540e\u9762\u63a5\u52a8\u8bcd\u539f\u5f62\uff0cto do\u3002

\u62d3\u5c55\u8d44\u6599\uff1a
\u52a8\u8bcd\u4e0d\u5b9a\u5f0f\u7684\u529f\u80fd\u3002
1. \u4f5c\u4e3b\u8bed\u3002
It makes me old to think of you.
\u601d\u541b\u4ee4\u4eba\u8001\u3002
2. \u4f5c\u52a8\u8bcd\u5bbe\u8bed\u3002
I find it difficult to work with you.
\u6211\u53d1\u73b0\u4e0e\u4f60\u5171\u4e8b\u5f88\u96be\u3002
3. \u4f5c\u8868\u8bed\u3002
My work is to prepare dinner.
\u6211\u7684\u5de5\u4f5c\u662f\u51c6\u5907\u665a\u9910\u3002
4. \u4f5c\u5bbe\u8bed\u8865\u8bed\u3002
I want you to tell me the truth.
\u6211\u60f3\u8981\u4f60\u8ddf\u6211\u8bf4\u5b9e\u8bdd\u3002
5. \u4f5c\u4ecb\u7cfb\u8bcd\u5bbe\u8bed\u3002
It had no effect except to make her angry.
\u9664\u4e86\u60f9\u5979\u751f\u6c14\u4e4b\u5916\uff0c\u5b83\u6ca1\u6709\u6548\u679c\u3002
6.\u4f5c\u5b9a\u8bed\u3002
\u52a8\u8bcd\u4e0d\u5b9a\u5f0f\u4e0e\u5176\u6240\u4fee\u9970\u7684\u5b57\u4e4b\u95f4\u53ef\u6709\u4e3b\u8c13\u5173\u7cfb\u548c\u52a8\u5bbe\u5173\u7cfb\u3002
Amy was the only woman to remember my birthday.
\u827e\u7c73\u662f\u552f\u4e00\u8bb0\u4f4f\u6211\u751f\u65e5\u7684\u4eba\u3002
7.\u4f5c\u72b6\u8bed\u3002
She was so angry as to be unable to speak.
\u5979\u6c14\u5f97\u8bf4\u4e0d\u51fa\u8bdd\u6765\u4e86\u3002

to 作为介词的时候后面用-ing形式，如果作为不定式，那么就跟动词原形。
一般在动词后面的to 都是跟动词原形，比如 make sb to do, let sb to know
但是作为介词 就要跟ing形式 如 look forward to doing

这个是要记得 一般都是不定式了

被固定词组。除了固定词组外，基本上都是原形。

扩展阅读：start to do还是doing ... to live后面必须要加in吗 ... guide to do还是doing ... 动词后加to do大全 ... too to的用法及句型 ... 怎么判断to do还是doing ... to be三种用法 ... 英语后加to do的动词 ... 名词和动词区别口诀 ...