Thratened or Threatened: How To spell?

The word Thratened is misspelled against Threatened, which is past tense of "Threaten"

Threatened has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets thr & tened is misspelled as 'A'
Wrong Spelling:  thr-a-tened 
Correct Spelling:  thr-ea-tened 
Explore spell check of Threatened to spell without errors.

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