| JLPT N3. Standard grammar. Used in both conversation and writing. | 
うちに translates as “while” in English and is best understood in contrast to 
It appends directly to verbs and i-adjectives, but requires の when it follows nouns and な when it follows na-adjectives.
| While you’re a university student, you should experience lots of different things. | 
Being a university student isn’t an action you can perform and thus we cannot use 間に.
| Please eat while it’s hot. | 
| あの | 
| Apparently that lady sold the company she founded in her 20’s and retired while still young. | 
| この | 
| I heard that this play is on until the end of the month so let’s go while we can. | 
| Work is going to get busy from next week so let’s prepare while we have time. |