Google's Matt Cutts was asked this question and responded directly in a video (Aug 2011):
Do spelling and grammar matter when evaluating content and site quality?
At least the last time I checked (which was a while ago), it is not used as a direct signal within our rankings. So its not one of the 200 different signals that we use to assess the ...
I think it might be possible. Google does detect bad grammar, but they will (most likely) not directly penalize bad grammar. Take the following (useful?) cases for bad grammar:
Engrish funny content and such.
A page with "examples" of bad grammar with corrections below.
Some grammar is considered "bad" for different regions... This could happen with "Dutch" ...
Google won't directly penalize a page that contains bad grammar. Google consider the bounce rate of a page so if you have web page content with bad grammar and your users hate those grammatical mistakes and they bounced out from your page, then your web page will get negative impact to Google. Google only count the content quality ( Duplicate or not ) and ...
Let me answer from Google's perspective.
What are the rules in 2021 for writing text for SEO?
Perhaps the following Google recommendations can help:
Content and quality questions Does the content provide original
information, reporting, research or analysis? Does the content provide
a substantial, complete or comprehensive description of the topic?
I’m afraid your English is nowhere near good enough for you to be writing professionally in English. The article (and this question) are full of grammatical errors, poor word choices and syntax that looks very odd to a native speaker.
A while back (maybe 2-3 years ago), I experimented (skeptically) with the native WYSIWYG editor for Google Sites.
I was astounded at how semantic and concise the HTML/CSS it rendered was.
Might be worth looking into...
If memory serves, Google Docs that I exported as HTML were equally as impressive.
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