Sleyn or Slain: How To spell?

The word Sleyn is misspelled against Slain, which is past perfect of "Slay"

Word contains consecutive vowels 'AI' in between alphabets sl & n is misspelled as 'EY'
Wrong Spelling: sl-ey-n
Correct Spelling: sl-ai-n
Explore spell check of Slain to spell without errors.