The word Imbitering is misspelled against Imbittering, which is present continuous of "Imbitter"
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Imbittering has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings imbi & ering which should not be misspelled with single 'T'
Wrong Spelling:  imbi-t-ering 
Correct Spelling:  imbi-tt-ering 
Find more wrongly spelled words of Imbittering to spell it well.