Subpoenad or Subpoenaed: How To spell?

The word Subpoenad is misspelled against Subpoenaed, which is past tense of "Subpoena"

--> Subpoenaed has vowels 'ae' together mispronounced as 'a'
Word contains consecutive vowels 'AE' in between alphabets subpoen & d is misspelled as 'A'
Wrong Spelling:  subpoen-a-d 
Correct Spelling:  subpoen-ae-d 
Check more misspelled words of Subpoenaed to spell it correct.

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