第1个回答 2011-11-17
want 後面跟个名词 是想要某样东西
want to 後面跟个动词 是想要做某件事
类似的有 like 喜欢
"喜欢" 的後面一定要跟名词，要嘛是一个东西，要嘛是一件事。
I like soccer 我喜欢足球
I like to play soccer/ I like playing soccer
play 是动词，但这里 playing 或者 to play 就不是一般的动词了，而是叫做 动名词。
动名词就是一个动词 拿来当名词用的形式。
play 是一般 "我玩" "你玩" 里面的"玩"，
而 to play 就变成是在说 "'玩" 这件 "事" 了。 ("事" 是名词~)
我们学英文的很容易混淆，但那只是因为中文里面没有动词(动词本身)变化 所以不会注意到用法其实不一样~
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be 动词+ -ing 是进行式
I eat 我吃 → I am eating 我正在吃
I ate 我(过去)吃 → I was eating 我(过去的某个时候) 正在吃。
同样的道理，不能说 he is looks beautiful, 但可以说 he is looking beautiful.
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所以呢，你这里唯一一个问题其实就是动词的不同形式没有搞清楚。
一个动词有几种不同的形式，用在不同的情况里：
eat, ate, eaten, eating, 吃
play, played, played, playing 玩
(一般不常列最後那个 -ing, 因为所有的动词都一样)
原形用在简单现在式：
I eat, you eat, he/she/it eats, they eat, we eat =我吃，你吃，他吃....
ate 简单过去式：
I ate, you ate, he/she/it ate, they ate, we ate = 我吃，你吃，他吃...(过去吃的)
eaten 用在完成式：
I have eaten, you have eaten, he has eaten... = 我(已经) 吃过了，你吃过了，他吃过了...
(过去完成式= have 换过去式 I had eaten, he had eaten...)
eating 用在进行式
现在进行- I am eating, you are eating, he is eating, they are eating...= 我正在吃，你正在吃，他在吃，他们在吃...
过去进行- I was eating, you were eating, he was eating, they were eating...=我(那时候) 正在吃，你(某个过去的时候) 正在吃...
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写了一大串，希望对你会有点帮助！其他还有什麼东西都可以再找我！ (英文是我的兴趣 :) )
第2个回答 2011-11-17
he want[s] to watch TV . ---- wants是动词 , to watch没有s 不是动词
The weather is getting colder and colder --- is getting 是Auxiliary Verb(整个是助动词)
He looks beautiful 后面不能有is,是因为 是无厘头的句子 He is looks beautiful
但如果是 He is beautiful.那是正确的 --is 在句子中 是动词 或 He is looking beautiful. --- is looking是Auxiliary Verb(整个是助动词)