Greysing or Greasing: How To spell?

The word Greysing is misspelled against Greasing, which is present continuous of "Grease"

Greasing has vowels 'ea' together mispronounced as 'ey'
Word contains consecutive vowels 'EA' in between alphabets gr & sing is misspelled as 'EY'
Wrong Spelling:  gr-ey-sing 
Correct Spelling:  gr-ea-sing 
Find more wrongly spelled words of Greasing to spell it well.

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