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I knew what the problem was. vs I Knew what was the problem.

I knew what the problem was. vs I Knew what was the problem. which is much better to use in a sentence. Which is more popular in English form?

Looking on the internet deeply has found these results:

I knew what the problem was. is the most popular phrase on the web.

I Knew what was the problem.

12 results on the web

I knew what the problem was.

1364,000 results on the web

More popular!

Some examples and use cases from the internet:

Some examples and use cases from the internet:

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I knew what the problem was. vs I Knew what was the problem. | GrammarChecker.io