Prepositions & Common Combination and Prepositions

PREPOSITIONS

AT 

  1.      Used to poin out spesific time

·         I will come to your house at 02.00 a.m.

·         They will go to school at 07.00 a.m.

     

                    2.    Used to indicate a place

·         she said  jackson will meet you at central park.

3        3.    Used to indicate an email address

·         Can you email me at jdndmks@yahoo.com?

4        4.    Used to indicate an activity

·         She really good at cooking but she must learn sewing.

COMMON COMBINATION  AND PREPOSITION

1.      Verbs and preposition are also used in common phrases. The verb generally goes in font of the preposition

         ·         You should agree with your parent about your school.

         ·         It’s hard to fall in love with someone else.

2.      The verb and preposition may be separated, especially if the sentence is formally written so the preposition isn’t at the end.
                ·         Please can you explain about your presentation

Reference:

http://www.talkenglish.com/grammar/prepositions-on-at-in.aspx

http://www.grammarly.com/handbook/grammar/prepositions/9/common-verb-and-preposition-combinations/