以前 / 之前 - 句子
I'm providing English variants in case of meaning is not clear.
1. 我们的放假以前，几个月我们买了机票。（在放假前几个月，我们买了机票。这句话里的时间状语是不能分开的，也不能和主语混合在一起。中文一句话里的主语只有一个，在从句里是要省略的，不需要再次强调。因此，这句话里的“我们”只需要保留一个就可以。另外，在中国，人们一般不会提前几个月买飞机票，不清楚航空公司是否有这项服务。国外是否也是如此呢？：））- Before going to a holiday, we bought plane-tickets several months ago.
2. 每天我睡觉以前，我刷牙。（我每天睡觉以前刷牙。呵呵，你的思维方式和我英语的思维方式差不多啊，都是按照母语的习惯进行表达。这句话的问题和第一句话的问题是一样的，主语“我”，是不需要是从句和主句里都出现的，出现一次就可以，一般在主句里出现。）- Every day before going to bed, I brush my teeth.
3. 我读一个课文之前，我以该应该认识生词。（在读课文之前，我应该先认识生词。问题同上两句。）- Before reading a new text, I have to study new words.
4. 明天的聚会以前，我们将or会清理我们的房子。（因为是明天发生的事，因此是将来时态）- We have to clean the house before our tomorrow's party.
5. 做饺子之前，我们去超市买东西（“材料”better，“东西”这个词汇虽然是中文里能够表示很多意思，类似英语里的have，但是如果能够说明白的话，最好还是写具体些。）。- Before cooking any dumplings, we have to go to the supermarket to do shopping.
6. 去看她朋友以前，我给我朋友她打电话。（中文习惯先明确身份，然后以代词代替）- Before going to visit my friend, I have called her.
7. 看一个电影以前（在看电影以前），朋友们吃了晚饭。（这句话的mistake和第十句话相似）- Before watching the movie we had dinner.
8. 去中国旅游之前，我哥哥学了一些汉语。（这句很帮，不过加上“一些”修饰宾语“汉语”的话，逻辑上更严密。因为学习一门语言可不是一会的事呢，你说是吗，Katya？）- My elder brother learnt Chinese, before going to travel in China.
9. 有在放假以前，人以该应该节约钱。（在度假之前，人们需要积蓄or储存一些钱）- Before going to a holiday you have to save up some money.
10. 买一俩（此处语法上没有问题，不过不符合中文语言习惯；另外，如果必须要用到量词的话，应该是“辆”，而不是“俩”，量词“辆”专门用来修饰“车”，“俩”，音“lia”是数词，比如“俩人”，“俩位”等等）车之前，他弟弟看了很多相关的（书有很多类，在这里最好加上“相关的”，那么读者就知道你弟弟看的是与车相关的书，而不是其他的类的书）书。- Before buying the car, my younger brother has read lots of books.
Thank you so much for your time devoted to the corrections.
简单介绍一下中文语法。就算是最复杂的中文句子，用一句话就可以表示完整的划分句子，即：状定主状谓补定宾。即状语，定语，主语，状语，谓语，补语，定语，宾语。如果是复合句的话，也遵循同样的原则，将复合句中的主句，从句，或者并列句按照这个原则划分即可。
以后我再详细的跟你讲解，举例子说明。
以前 / 之前 - 句子
I'm providing English variants in case of meaning is not clear.
1. 我们的放假以前，几个月我们买了机票。- Before going to a holiday, we bought plane-tickets several months ago. 放假前几个月，我们买了机票。
2. 每天我睡觉以前，我刷牙。- Every day before going to bed, I brush my teeth. 每天睡觉之前，我要刷牙。
3. 我读一个课文之前，我以该认识生词。- Before reading a new text, I have to study new words.读一篇文章之前，我要先学习生词。
4. 明天的聚会以前，我们清理我们的房子。- We have to clean the house before our tomorrow's party. 明天聚会之前，我们必须打扫一下房间。
5. 做饺子之前，我们去超市买东西。- Before cooking any dumplings, we have to go to the supermarket to do shopping.
6. 去看她以前，我给我朋友打电话。- Before going to visit my friend, I have called her.
去看她之前，我已经给她打过电话。
7. 看一个电影以前，朋友们吃了晚饭。- Before watching the movie we had dinner.
看电影前，我们先吃了晚饭。
8. 去中国旅游之前，我哥哥学了汉语。- My elder brother learnt Chinese, before going to travel in China.
9. 有放假以前，人以该节约钱。- Before going to a holiday you have to save up some money.
度假前，你应该积攒一些钱。
10. 买一俩车之前，他弟弟看了很多书。- Before buying the car, my younger brother has read lots of books.
买这两车之前，我弟弟看了许多书。
Thank you so much for your time devoted to the corrections.
以前 / 之前 - 句子
I'm providing English variants in case of meaning is not clear.
1. 我们放假以前，几个月我们买了机票。- Before going to a holiday, we bought plane-tickets several months ago.
2. 每天我睡觉以前，我刷牙。- Every day before going to bed, I brush my teeth.
3. 我读一个课文之前，我应（以）该认识生词。- Before reading a new text, I have to study new words.
4. 明天的聚会以前，我们清理我们的房子。- We have to clean the house before our tomorrow's party.
5. 做饺子之前，我们去超市买东西。- Before cooking any dumplings, we have to go to the supermarket to do shopping.
6. 去看她以前，我给我朋友打电话。- Before going to visit my friend, I have called her.
7. 看一个电影以前，朋友们吃了晚饭。- Before watching the movie we had dinner.
8. 去中国旅游之前，我哥哥学了汉语。- My elder brother learnt Chinese, before going to travel in China.
9. 有放假以前，人应（以）该节约钱。- Before going to a holiday you have to save up some money.
10. 买一辆（俩）车之前，他弟弟看了很多书。- Before buying the car, my younger brother has read lots of books.
Thank you so much for your time devoted to the corrections.
以前 / 之前 - 句子
I'm providing English variants in case of meaning is not clear.
1. 在放假之前，我们提前几个月买好了机票。- Before going to a holiday, we bought plane-tickets several months ago.
2. 每天睡觉之前，我都要刷牙。- Every day before going to bed, I brush my teeth.
3. 我读一个新课文之前，我都必须要学习新的单词。- Before reading a new text, I have to study new words.
4. 在明天的聚会之前，我们必须要打扫好房屋。- We have to clean the house before our tomorrow's party.
5. 做饺子之前，我们得去超市买东西。- Before cooking any dumplings, we have to go to the supermarket to do shopping.
6. 去看我朋友之前，我提前给她打了个电话。- Before going to visit my friend, I have called her.
7. 看电影之前，我们一起吃了个晚饭。- Before watching the movie we had dinner.
8. 去中国旅游之前，我哥哥学了汉语。- My elder brother learnt Chinese, before going to travel in China.
9. 在度假前，你得攒些钱。- Before going to a holiday you have to save up some money.
10. 买一俩车之前，我弟弟看了很多书。- Before buying the car, my younger brother has read lots of books.
Thank you so much for your time devoted to the corrections.
以前 / 之前 - 句子
I'm providing English variants in case of meaning is not clear.
1. 我们放假之前，几个月我们买了机票。- Before going to a holiday, we bought plane-tickets several months ago.
2. 每天我睡觉之前，我刷牙。- Every day before going to bed, I brush my teeth.
3. 我读一个课文之前，我应该认识生词。- Before reading a new text, I have to study new words.
4. 明天的聚会以前，我们必须清理我们的房子。- We have to clean the house before our tomorrow's party.
5. 做饺子之前，我们去超市买东西。- Before cooking any dumplings, we have to go to the supermarket to do shopping.
6. 去看她之前，我给我朋友打电话。- Before going to visit my friend, I have called her.
7. 看一个电影以前，朋友们吃了晚饭。- Before watching the movie we had dinner.
8. 去中国旅游之前，我哥哥学了汉语。- My elder brother learnt Chinese, before going to travel in China.
9. 在放假以前，人应该节约钱。- Before going to a holiday you have to save up some money.
10. 买一俩车之前，他弟弟看了很多书。- Before buying the car, my younger brother has read lots of books.
Thank you so much for your time devoted to the corrections.
