The word Teising is misspelled against Teasing, which is present continuous of "Tease"
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Teasing has vowels 'ea' together mispronounced as 'ei'
Word contains consecutive vowels 'EA' in between alphabets t & sing is misspelled as 'EI'
Wrong Spelling:  t-ei-sing 
Correct Spelling:  t-ea-sing 
Find more wrongly spelled words of Teasing to spell it well.