Student or Learner
Can "somehow" mean "somewhat" ? I don't think so.
Why did you ask that question?
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.
Last night when I was talking with two of my vietnamese friends, suddenly I asked a question whether they ware sleepy. Because it was actually about 11 pm. One answered "not much but somehow". At the same time I told her that what you mean to say might be "somewhat" not "somehow". But both of them told me that it was correct. I said no. They also told me that it was a kind of slang. Well! As I am not much aware of slang I was neutral. And today I presented you the problem. Okay! Now it's clear that I was correct.
Here's a tip, kite:
In future, give us the context in post #1 to save us having to ask for it.