Caysing or Ceasing: How To spell?

The word Caysing is misspelled against Ceasing, which is present continuous of "Cease"

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

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