Traoling or Trailing: How To spell?

The word Traoling is misspelled against Trailing, a noun meaning "a. & vb. n. from Trail."

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

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