Traoled or Trailed: How To spell?

The word Traoled is misspelled against Trailed, which is past tense of "Trail"

Word contains consecutive vowels 'AI' in between alphabets tr & led is misspelled as 'AO'
Wrong Spelling:  tr-ao-led 
Correct Spelling:  tr-ai-led 
Find more incorrect spellings of Trailed to spell right way.

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