[JLPT grammar] Which Particle, に or で, Is Used with Frequency Expressions?

Today I am going to share the homework correction quoted from my JLPT N5 course!
The student’s sentence is not correct. Can you find the mistake?


[Student’s sentence]





[My correction]

I go to the gym twice a week.


に is used with frequency expressions such as per hour, per day, etc.

[Quantifier (time period)]  [how many]


I learn 10 kanji a day.

I work 25 hours per week.

The Olympics are held once every four years.

As you may know, に is the particle having the most various functions, and this is just one of them.


I hope my explanation helps you. 😊



In the JLPT course, all lessons come with homework. If you submit your homework, I will reply with corrections.
I can break down the Japanese grammar and point out mistakes, explaining the structure and nuances of Japanese in an easy-to-understand way.
You can also ask me any questions in as much detail as you want. I will teach you until you get it!