The word Tedering is misspelled against Teddering, which is present continuous of "Tedder"
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Teddering has double "dd" is mispronounced as "d"
Remember double 'DD' in between the strings Te & ering which should not be misspelled with single 'D'
Wrong Spelling:  Te-d-ering 
Correct Spelling:  Te-dd-ering 
Find more wrongly spelled words of Teddering to spell it well.