Plened or Plained: How To spell?

The word Plened is misspelled against Plained, which is past tense of "Plain"

Word contains consecutive vowels 'AI' in between alphabets pl & ned is misspelled as 'E'
Wrong Spelling:  pl-e-ned 
Correct Spelling:  pl-ai-ned 
Explore spell check of Plained to spell without errors.

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