Tuesday, March 18, 2014

Class 9: 17/3 MAG2 For/Since/During/While

For/Since/During/While

 For:

Used to express a complete duration of time.

ex. I have been walking for 2 hours.

Since:

Used when the beginning of the duration is what is important.

ex. I have been working here since April.  

During

Used when 2 actions happen at the same time and the second action is a duration expressed in a noun. 

ex. I fell asleep during English class.  

While

Used when 2 actions happen at the same time and they are both expressed as verbs.

ex. I met him on the street while I was walking.  
   

No comments:

Post a Comment