question on ていく and てくる?


In the following sentence, 最近、宿題をしてこない生徒が多いです which means "Many students come
to school without doing homework." why doesn't this mean "Many students don't
come to school or do homework." or even "Many students do homework and don't
come to school"?




The negative in the sentence ない is used for the noun 宿題 homework hence the
translation "Many students come to school without doing homework." is correct,
not the other two.

If you are asking about the difference between "...ていく" and "...てくる", they are
usually used as suffixes meaning "to go and do ..." and "to come and do ...".
You should see
[this](https://japanese.stackexchange.com/questions/676/difference-
between-%E3%81%A6%E3%81%84%E3%81%8F-and-%E3%81%A6%E3%81%8F%E3%82%8B),
[this](https://japanese.stackexchange.com/questions/42347/what-is-the-
difference-
between-%E3%81%A6%E3%81%8F%E3%82%8B-%E3%81%A6%E3%81%84%E3%81%8F-and-%E5%A7%8B%E3%82%81%E3%82%8B-%E7%B6%9A%E3%81%91%E3%82%8B)
and also [this](https://japanese.stackexchange.com/questions/1204/am-i-coming-
or-
going-%E6%88%BB%E3%81%A3%E3%81%A6%E3%81%8F%E3%82%8B-vs-%E6%88%BB%E3%81%A3%E3%81%A6%E3%81%84%E3%81%8F)
to understand it better.

