How to use infinitives of purpose
Hi, I’m Dan from BBC Learning English, and today I’m going to talk to you about infinitives of purpose.
English has something called the infinitive of purpose. We use it to explain why we do something. To explain why we do something is an infinitive of purpose. Why do we use it?
Another example is: I went home to eat. We make our sentence: I went home, and then attach a full infinitive verb - to eat.
This doesn’t work with nouns. For example: I went home to food.
后面不能跟名词。例如： I went home to food.
To use a noun we use for. I went home for food.
后面是名词是要用for：I went home for food.
Finally, we can also use for to talk about doing something to help someone. For example: I made this video for you to learn. You’re welcome!