Do we say “during the meeting” or “while the meeting”? Do we say “since 6 months” or “for 6 months”? In this English grammar lesson, you’ll learn how to use these four confusing prepositions easily and naturally in real life situations. First, we’ll write a simple story together, to see if you’re using these words correctly. Then, I’ll explain when to use each preposition, with lots of examples. In this way, you’ll understand how to use these important little words correctly, while speaking and writing. Join me now! https://www.engvid.com/prepositions-i...

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More of my grammar lessons about prepositions:
Prepositions of Time: 6 Easy Exceptions    • Prepositions of Time: 6 Easy Exceptions  
Which prepositions go with these 12 adjectives?    • English Grammar: Which prepositions g...  

In this lesson:
0:00 Prepositions: since, for, during, while
2:01 Test Your English: Prepositions
6:37 "since" or "for"?
11:36 "during" or "while"?