How do we use “对” in a sentence?

谢谢您！

“对”的大概用法如下：
一、介词
1. 向；跟
（1）你有什么要求对我提出来吧。
（2）他对钱很感兴趣。
（3）他对我说了声“谢谢”。
2.对于
（1）这些书对我有用，对他没有用。
（2）对这个词的用法，你还有不懂的地方吗？
3、对。。。来说
（1）对我来说，这本书很有用。
二、动词
1.对待；对付；对抗
（1）这次比赛是中国队对美国队。
2、朝；向；面对
（1）他的窗户正对着公交站。
（2）他坐在床上，用背对着我。
3、适合
（1）这些菜很对我的胃口。
（2）他的脾气很对我的脾气。
4、把两个东西放一起互相比较，看是否符合。
（1）你用照片对对，看看是不是他。
（2）考完试后，我跟老师对了答案，发现错了两道题。
三、形容词：正确、正常、相合
（1）这些答案都对。
（2）你说的都对。
（3）你猜对了。
四、量词
（1）他们是一对夫妻。
（2）一对手镯
（3）一对儿枕头

When using 对 (duì) as a preposition, it means "to" or "towards" an object or target. As with all prepositions, you've got to watch out when using this word, as usage of 对 in Chinese doesn't always totally "make sense" or correspond to English at all.

Structure: Subj. + 对 + Person + Verb
Examples
宝宝 对 我 笑 了 。Bǎobao duì wǒ xiào le.The baby smiled at me.
小狗 在 对 你 叫 。Xiǎogǒu zài duì nǐ jiào.The dog is barking at you.
你 不 应该 这样 对 父母 说话 。Nǐ bù yīnggāi zhèyàng duì fùmǔ shuōhuà.

Colloquial Expression 对……来说
In English we often start sentences with "to someone" or "for someone" when sharing that person's perspective. In Chinese, the pattern is: 对 + Person + 来说 ，⋯⋯

Usage with Specific Verbs

Certain verbs, especially psychological verbs, are often used with 对, which means 对 is needed if you want to add an object into the structure. I good example is 对……感兴趣 ("to be interested in..."). In this case, 对 means "in," "on," "about," etc., and the object doesn't have to be a person. The short list below will give a few more verbs frequently paired with 对.
Structures

对⋯⋯有兴趣 (yǒu xìngqù) to have an interest in...
对⋯⋯感兴趣 (gǎn xìngqù) to feel interested in...
对⋯⋯负责 (fùzé) to be responsible for...
对⋯⋯满意 (mǎnyì) to feel satisfied with...
对⋯⋯失望 (shīwàng) to be disappointed in/with...
对⋯⋯好奇 (hàoqí) to be curious about...

Examples
1. 我 儿子 对 学 外语 很 感 兴趣 。
Wǒ érzi duì xué wàiyǔ hěn gǎn xìngqù.
My son is very interested in learning foreign languages.

2.你 应该 对 自己 的 工作 负责 。
Nǐ yīnggāi duì zìjǐ de gōngzuò fùzé .
You should be responsible for your job.

3. 老板 对 你 不 太 满意 。
Lǎobǎn duì nǐ bù tài mǎnyì.
The boss is not very satisfied with you.

4. 观众 对 比赛 结果 非常 失望 。
Guānzhòng duì bǐsài jiéguǒ fēicháng shīwàng.
The audience is very disappointed with the result of the game.

5. 我 的 小 女儿 对 所有 动物 都 很 好奇 。
Wǒ de xiǎo nǚ'ér duì suǒyǒu dòngwù dōu hěn hàoqí.
My younger daughter is curious about all animals.