Retuned or Retained: How To spell?

The word Retuned is misspelled against Retained, which is past tense of "Retain"

Word contains consecutive vowels 'AI' in between alphabets ret & ned is misspelled as 'U'
Wrong Spelling: ret-u-ned
Correct Spelling: ret-ai-ned
Check more misspelled words of Retained to spell it correct.