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I came across the following sentence in my dictionary :

> 下手なわけだよ，習い始めたばかりなんだから

Because of the absence of context, I imagined one by myself. Suppose I ‘m
cooking unskillfully and a friend who sees that says ,“お前料理下手だな”. Then to make
excuses I say, “下手なわけだよ，習い始めたばかりなんだから.”

The above is the context I imagine, but a native speaker said that in this
case in which I want to make excuses for myself, わけ is not suitable, and はず is
OK.He didn’t explain more.

I know the nuance between the following two sentences:

A.彼は七年間も日本にいたから、日本語が上手な **わけ** だ

B.彼は七年間も日本にいたから、日本語が上手な **はず** だ

I just want to know why the usage of わけ such as in sentence A couldn’t be used
to make excuses for oneself. It’s very anti intuitive to me..

Thanks in advance, and sorry for my poor English..
CC BY-SA 4.0
2019-11-29T07:30:20.827
73275
2019-12-01T05:10:34.203
31078
question
grammar word-choice usage nuances
A little help with the usage of 「……わけだよ」
In my opinion, it should be 下手で当然だろ？ (It's natural that I'm poor at it, isn't
it?) , which can barely be interchangeable to 下手なはずだろ？, but not はずだよ.

Neither わけだ or はずだ are really correct because わけだ (No wonder that's that) can
only work when you provide information the listener isn't aware of or when you
hear the reason you haven't been aware of, and はずだ is only synonymous to the
latter beside assumption.
CC BY-SA 4.0
2019-12-01T05:10:34.203
73311
2019-12-01T05:10:34.203
4092
73275
answer