以下的動詞后面，不定詞的后面都要省掉to。
動詞 例句
let My mother let me watch TV tonight.
make He makes his students respect teachers.
have He had his sons clean their rooms.
see I saw him run away.
hear I heard the birds sing.
watch I watched the kids play.
notice I noticed her cry.
因為在這些動詞的后面，本來應該用不定詞，僅僅是to被省掉了，因此我們在這些動詞的后面仍然要用原式，以下的句子都是錯的：
*He made his son ran away from home.
*I saw him walked away..
*I have never heard him sang any song.
Help這一個動詞非常特別，它后面的不定詞中的to可省略也可不省，以下的句子都是對的：
I helped him wash his car.
I helped him to wash his car.
【練習四十三】
以下的句子都有錯，請改正：
1.*He lets his son to drive his car.
2.*He made me felt happy.
3.*I made my friend to discuss his problem with me.
4.*I had my son to get up early every morning.
5.*I helped my father painted his house.
6.*I had my brother to carry this heavy luggage for me.
7.*I had Mary to marry me.
8.*This song makes everyone to cry.
9.*I helped Nancy worked hard.
10.*He made us to believe him.
11.*I saw him to play.
12.*I heard Mary sang several songs.
13.*I watched her to swim.
14.*I saw the birds to fly away.
第十章 如何將動詞改成形容詞
我們中文里，一個字有時是動詞，有時卻又可以用作形容詞，最著名的例子是〝微笑老蕭〞(蕭萬長院長的外號)〝微笑〞應該是動詞，可是在這里，顯然〝微笑〞是形容詞。〝哭泣〞通常是動詞，可是我們也可以說〝哭泣的孩子〞。也難怪我們常見到以下錯誤的英文句子：
* a smile face
* a run boy
需知smile和cry都是動詞，是不能當作形容詞來用的。
可是，更糟糕的是以下句子：〝住在臺灣的人很有錢〞，我們很多人會說
* People live in Taiwan are rich.
以上的話為什么錯呢?因為People是主詞，are是動詞，live in Taiwan形容people，可是live是一個動詞，不能用作形容詞的。怎么辦呢?我們可以將一個動詞用成一個形容詞，我們的做法是利用分詞(participle)和不定詞(infinitive)，而分詞有兩種：現在分詞(present participle)和過去分詞(past participle)，我們在下一節，先談現在分詞的用法。
10§1 現在分詞(present participle)作為形容詞
任何一個動詞，都有一個現在分詞(present participle)，現在分詞的形式是在動詞后面加上ing，如：
laughing
crying
walking
swimming
running
以下的例子中，現在分詞都是形容詞
a crying baby
a smiling girl
an exciting story
running water
a running boy
a rising star
現在分詞不一定放在名詞的前面，在以下的句子中，現在分詞都在名詞的后面
a person walking in the woods
the young man running very fast
people living in Taiwan
the person driving that red car
the singer singing the national anthem(國歌)
the boys playing in the fields
the young boy swimming in the pool
以下句子中的現在分詞，都被用作形容詞。
We have a crying baby here.
Seeing is believing.(believing是形容詞，seeing是名詞)
Loving is forgiving.
He always wears a smiling face.
Running water is important for mankind.
Look at the rising sun.
The person swimming in that cold river is quite strong.
The young man driving the red car is rich.
Those boys playing basketball are happy.
This movie is exciting.
This news is very upsetting.
This story is troubling.
The young boy swimming in the pool is my brother.
People living in the United States consume more energy than other people.
The person painting the house there is from Mexico.
She has a loving husband.
He is a rising star.
