the wrong version - "what to speak of shorthand, he does not know even typewriting."
the correct version is - "what not to speak of shorthand, he does not know even typewriting."
what is the problem in the wrong version of the question?
" No, it isn't. Both versions are wrong. The correct idiom is this: Not to speak of /mention shorthand, he does not even know how to type .
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gamiz123the correct version is - "what not to speak of shorthand, he does not know even typewriting."
No, it isn't. Both versions are wrong. The correct idiom is this:
Not to speak of /mention shorthand, he does not even know how to type.