The word Signaling is misspelled against Signalling, which is present continuous of "Signal"
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Signalling has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings signa & ing which should not be misspelled with single 'L'
Wrong Spelling: signa-l-ing
Correct Spelling: signa-ll-ing
Find more wrongly spelled words of Signalling to spell it well.