1. INFINITIVE OF PURPOSE WHY?
Adapted from:

2. AFFIRMATIVE
You can explain why you do something with to + verb / in order to + verb
Why did you leave the meeting? To make a phone call.
I’m writing in order to thank them for their help.

3. not to + verb / in order not to + verb
NEGATIVE
not to + verb / in order not to + verb
Why didn’t you phone? In order not to wake you up.
He left early in order not to see me.

4. You can explain why you do something with so that
He left the meeting so that he could phone his family.
He left the meeting (in order) to phone his family.
I’m telling them about the problem so that they can try to find a solution.

5. (in order) to + verb for + noun
I went to Canada to meet the customer.
They need some money to buy new equipment.
I went to Canada for a meeting.
They need money for new equipment.

6. 1) Please simplify the following sentences:
I’m going to the bank because I want to get some money.
I want to rewrite this code because I want to improve the program.
He created his own website because he wanted to post his portfolio there.
I am not going to take part in the competition because I don’t want to fail again.
He called me in the morning and told me he fell ill.
Please redesign the options for account setup because they should look more user-friendly.
Users need a name and a password because they have to log on to each server.
They wrote us an because they wanted to inform us about a problem.

7. 2) Please insert “to” or “for” in the following sentences:
Our organization started in 1994 ____ lead the Web to its full potential.
We develop common protocols ____ promote its evolution.
We have the Offices Program ___ adoption.
In August 2011, they created Community and Business Groups ___ support innovation.
We invite technical experts ___ coordinate technology development.
We also invite experts _____ management of other operations.
If you need ____ get some information about our organization, complete the request form.
You do not need an account ____ complete the form, but we need your ___ validation of your request.

8. 3) Please continue the sentences:
I am helping my teammate to …
I decided to save up in order to …
I studied at the university to …
I created my own website so that …
I spoke with the project manager in order not to…

9. THE END