I come across such an expression as "by night", which means "during the night".
If I use the word "evening", should I add the article "the" as "by the evening"?
Thanks for your help!
You can use "by the evening" but not in the same way.
I have to write a report on Tuesday, but I have to write it by the evening because I'm going out for dinner with my sister.
Here, "by the evening" means "before evening arrives".
Remember - correct capitalisation, punctuation and spacing make posts much easier to read.