This document discusses clauses of purpose that are commonly used with verbs to indicate intention or reason. It provides examples of using "to", "in order to", "so (that)", and "if" clauses with verbs like "speak", "share", "protect", and "take" to explain why someone would perform an action. The purpose clauses help connect the action in the main clause with the intended outcome in the subordinate purpose clause.

1. CLAUSES OF PURPOSE:
SO (THAT), (IN ORDER) TO, IF

2. TO, IN ORDER TO + VERB
I tend to go online as much as I can to keep
in touch with friends.
SO, SO THAT + CLAUSE
I tend to go online as much as I can so I can
keep in touch with friends.

3. A hands-free device is needed…
… to speak while driving
… so you can speak while you drive.
… if you need to speak while you are
driving.

4. You can carry an extra battery for
your phone
… if you need to speak for a long time.
… so that you can speak for hours.
… to speak for hours.

5. A webcam may be useful…
… to see your family abroad.
… if you want to have a video conference.
… so you can have a video conference.

6. People use Instagram…
… to edit/retouch (it does exist, sorry!) your
pics.
… so (that) you can share pics online.
… if you want to share your pics with
friends.

7. You may need a case for your
tablet
… in order to protect it.
… so that you can take it everywhere.
… if you want to take it everywhere.