Treanbands or Trainbands: How To spell?

The word Treanbands is misspelled against Trainbands, which is plural of "Trainband"

Word contains consecutive vowels 'AI' in between alphabets tr & nbands is misspelled as 'EA'
Wrong Spelling:  tr-ea-nbands 
Correct Spelling:  tr-ai-nbands 
Explore spell check of Trainbands to spell without errors.

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