Let's say Michael is supposed to attend every party, but there is one specifically so bad, that not even he was in it.


The use of "not even" is correct. "He was in it" is not.

...that not even he attended.

Additionally, "specifically so bad" doesn't sound at all natural.


Michael usually attends every party, but there there was one that was so awful that no one, not even he, went to it.

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Can paraphrase it? "specifically so bad"

And correct "he was in it" too.

 AlpheccaStars's reply was promoted to an answer.
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Is this correct? (attention: I'm not affirming, just asking) "but there there was one that was so awful."

Two "there"s?

MagnusManrikTwo "there"s?

It's wrong. There should be only one there there.