The word Shampoing is misspelled against Shampooing, which is present continuous of "Shampoo"
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Shampooing has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings shamp & ing which should not be misspelled with single 'O'
Wrong Spelling: shamp-o-ing
Correct Spelling: shamp-oo-ing
Find more incorrect spellings of Shampooing to spell right way.