Traiding or Treading: How To spell?

The word Traiding is misspelled against Treading, which is present continuous of "Tread"

Treading has vowels 'ea' together mispronounced as 'ai'
Word contains consecutive vowels 'EA' in between alphabets tr & ding is misspelled as 'AI'
Wrong Spelling:  tr-ai-ding 
Correct Spelling:  tr-ea-ding 
Find more wrongly spelled words of Treading to spell it well.

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