1. Infinitives: Person's Purpose (I sat down to rest.) Infinitives are often use to explain the reason why a person does something or the purpose of one's action. |
Examples: He left early to work. I drove to save time. I exercise to lose weight. |
In some cases, the form "for" is also used especially when talking about a purpose that concerns an action by another person. |
Examples: I posted the note on the fridge for Haru to see. I baked the cupcakes plain for you to decorate them. I left some dinner for Fred to eat when he gets home. |
2. In Order To; So As To Infinitives can also be used with expressions "in order to" (more formal) or "so as to." |
Examples: He went to Australia in order to improve his English. Tina takes her lunchbox to work so as to save money. Dixie swims everyday in order to better his swimming skills. |
It is also possible to use "in order to" and "so as to" before negative infinitives. |
Examples: I'm leaving early, so as not to get stuck in traffic. I take notes in class, so as not to forget anything. I have to lower the heat in order not to overcook the meat. |