I mistyped and submitted "I hove" instead of "I have" I realized it later, Autocorrect didn't check it. So later I installed 'Grammarly' and tried checking that same paragraph, and 'Grammarly' did it! It correctly identified the mistake in grammar. Since "hove" is also a word, conventional spell checkers don't correct it.

The only drawback is it asks to register even though it is for free.