Теорія:

Study the information when we use during, while, for.
  
We use these prepositions in different cases.
 
1. We use during with a noun.
 
During the film
 
2. While with a verb ( while I am studying)
 
3. For with a period of time ( for three days)
 
Examples:

We don’t like speaking during the meal.
 
dinner_together_a.jpg
 
I have been playing golf for two hours.
 
скачанные файлы.jpg
 
We didn’t talk while we were eating soup.
Джерела:
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