Curtuled or Curtailed: How To spell?

The word Curtuled is misspelled against Curtailed, which is past tense of "Curtail"

Word contains consecutive vowels 'AI' in between alphabets curt & led is misspelled as 'U'
Wrong Spelling:  curt-u-led 
Correct Spelling:  curt-ai-led 
Check more misspelled words of Curtailed to spell it correct.

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