Theory and practice.

1. PURPOSE
WHY?
Adapted from: http://busyteacher.org/14994-infinitive-of-purpose-ppt.html

2. Only one subject for all
actions

3. to / in order to / so as to + verb
 Why did you leave the meeting? To make a phone call.
 I’m writing in order to / so as to thank them for their help.
in order not to / so as not to
+ verb
He left early in order not to / so as not to see me.

4. so that / in order that + modal verb
 He left the meeting so that / in order that he could phone his
family.
He left the meeting (in order / so as) to phone his family.
 He left the meeting so that / in order that he wouldn’t see his
colleagues.
He left the meeting in order / so as not to see his colleagues.

5. Different subjects for the
actions

6. So that / in order that + modal verb
 I’m telling them about the problem so that / in order that they
can try to find a solution.

7. FOR
I went to Canada for a meeting.
They need money for new equipment.
+ noun
+ -ing
To describe the exact purpose of a thing.
This liquid is for cleaning metal.

8. THE END