for后面加什么词？

这要看具体语境，for后面可以接不同的词，常见的包括：

1. for + 名词：表示目的、原因、利益等。例如：

• I study hard for my future.
• She bought a new car for transportation.
• They donated money for charity.

2. for + 动词-ing形式：表示目的、原因、动机等。例如：

• He exercises every day for staying healthy.
• She reads books for improving her English.
• They save money for traveling around the world.

3. for + 代词/名词/动词不定式：表示预定、安排、目的等。例如：

• I booked a table for us at the restaurant.
• She arranged a meeting for tomorrow.
• They bought tickets for the concert.

4. for + 时间段：表示持续时间、时间跨度等。例如：

• I have been living in this city for three years.
• She will be on vacation for two weeks.
• They worked on the project for six months.

5. for + 比较级 + than：表示比较。例如：

• He is taller for his age than his classmates.
• She is smarter for her experience than her colleagues.
• They are faster for their training than their opponents.