[Grammar] ‘FOR a certain period’ VS ‘DURING a certain period’

[northpath]

To my knowledge, this sentence is ok:
1. Your return ticket is valid for three months.
But can I use the preposition ‘during’?
2. Your return ticket is valid during three months.

Or instead of withing
3. We recommend to consume this wine within six months.
To use during
4. We recommend to consume this wine during six months.

 

[teechar]

To my knowledge, this sentence is [STRIKE]ok[/STRIKE] OK (or okay):
Your return ticket is valid for three months.

Yes, that's grammatical and natural. Use it!

But can I use the preposition ‘during’?
Your return ticket is valid during three months.

No, that doesn't work.

 

[jutfrank]

3. is good.
4. is not good.

Don't use during with a time duration (three months/six weeks/twelve hours/four days)

Use during before an event which you perceive as having a beginning and an end. The action happens some time between the beginning and the end.

• I work up during the night.
  
• She had to go to the toilet during the movie.
  
• He was injured during the match.
  
• You must not use your phone during the lesson.
• You can sleep during the journey.

 

[northpath]

OK, sentence #5 is OK
5.There will be live entertainment throughout the day.
What about?
6.There will be live entertainment during the day.

 

[teechar]

5.There will be live entertainment throughout the day.
6.There will be live entertainment during the day.

Both are grammatical and natural. However, they don't necessarily mean the same thing.
Look up the difference between "throughout" and "during", and post back if you need more help.

[crossposted with Piscean]

 

[northpath]

OK, and finally, the right sentence:
7.Let's talk about this over lunch.
And I’m not sure about the sentence:
8. Let's talk about this during lunch.

 

[teechar]

I'll tell you what, how about acknowledging the responses you got so far?

 

[jutfrank]

7. and 8. are both good but 7. is more likely in that particular example sentence.