The word Planing is misspelled against Planning, which is present continuous of "Plan"
-->
Planning has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings pla & ing which should not be misspelled with single 'N'
Wrong Spelling: pla-n-ing
Correct Spelling: pla-nn-ing
Find more wrongly spelled words of Planning to spell it well.