The word Prengaging is misspelled against Preengaging, which is present continuous of "Preengage"
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Preengaging has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings Pr & ngaging which should not be misspelled with single 'E'
Wrong Spelling:  Pr-e-ngaging 
Correct Spelling:  Pr-ee-ngaging 
Find more wrongly spelled words of Preengaging to spell it well.