请问英语中动词做主语就要加ing吗变成动名形式吗还有就是介词后面加动词也要加ing吗?比如walking is good 和it a fine day for walking today

请问英语中动词做主语就要加ing吗变成动名形式吗还有就是介词后面加动词也要加ing吗?比如walking is good 和it a fine day for walking today
请问英语中动词做主语就要加ing吗变成动名形式吗还有就是介词后面加动词也要加ing吗?比如walking is good 和it a fine day for walking today

请问英语中动词做主语就要加ing吗变成动名形式吗还有就是介词后面加动词也要加ing吗?比如walking is good 和it a fine day for walking today
楼主所问的问题是涉及到了英语语法中的非谓语动词.
在英语中,不用作谓语而是用于担任其他语法功能的动词,即是非谓语动词.非谓语动词有三种,to do不定式,doing动名词,分词.其中分词分为现在分词和过去分词.
一般来说非谓语动词能充当不是谓语的大部分成分.如主语,宾语,表语,定语等.
因此反过来说,动词想做主语,就要变成非谓语动词.用不定式或是ing形式,都可以做主语.
eg:TO see is to believe.
seeing is believing.
介词后面加动词一般都要用ing形式.
像of,with,without,for这样的介词很容易看出来后面接ing形式.
但要注意的是to 这个词,它有时是介词,有时却是后面要接动词原形构成不定式的小品词.to 后面接动词ing的词有：
devote...to...eg:He devoted himself to writing.他致力于写作.
according...to...根据,accustom oneself to...使习惯于
add to 增加,admit to 承认,due to由于,boject to 反对等等.
所以做题时注意区分to是否是介词.

一般这样

不完全，除了动名词可以做主语之外（就是V-ing），动词不定式也可以做主语，理同介词后的动词，也可以用不定式。
To be or not to be, that is a question. (William Shakespeare.)

恩 。通常情况是这样
为了避免你混淆。我说一下 动词作主语。宾语和表语 的用法与区别
1）作主语
Fighting broke out between the South and the North.
南方与北方开战了。
2）作宾语
a. 动词后加动名词doing作宾语 V. + doing sth
admit 承认 a...

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恩 。通常情况是这样
为了避免你混淆。我说一下 动词作主语。宾语和表语 的用法与区别
1）作主语
Fighting broke out between the South and the North.
南方与北方开战了。
2）作宾语
a. 动词后加动名词doing作宾语 V. + doing sth
admit 承认 appreciate 感激,赞赏 avoid 避免
complete 完成 consider 认为 delay 耽误 deny 否认 detest 讨厌 endure 忍受 enjoy 喜欢 escape 逃脱 prevent阻止
fancy 想象 finish 完成 imagine 想象 mind 介意 miss 想念 postpone 推迟 practise 训练 recall 回忆 resent 讨厌 resist 抵抗 resume 继续 risk 冒险
suggest 建议 face 面对 include 包括 stand 忍受 understand 理解 forgive 宽恕 keep 继续
举例：
(1) Would you mind turning down your radio a little, please?
(2) The squirrel was lucky that it just missed being caught.
b. 词组后接doing
admit to prefer…to be used to lead to devote oneself to object to stick to be busy look forward to to为介词）
no good, no use, It's worth…, as well as,
can't help, It's no use /good be tired of
be fond of be capable of be afraid of
be proud of think of / about hold off
put off keep on insist on count on / upon
set about be successful in good at take up
give up burst out prevent … from…
3）作表语
Her job is washing，cleaning and taking care of the children.
而介词后面 位ING 是因为要表示一种状态 而动词本身不能单独表示。+ING 后变为动名词 才可表示
最后给你发个网站。上面有所有 语态运用 和 句式结构
http://www.wwenglish.com/en/z/grammar/

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