Overstud or Overstaid: How To spell?

The word Overstud is misspelled against Overstaid, which is past tense of "Overstay"

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

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