Eng

Irregular...

參

Alternate number form, Attend, Consider, Consult, Irregular, Join, Participate, Recommend, Take part in, Three, Unequal, Uneven

錯

Blunder, Complicated, Error, Incorrect, Intricate, Irregular, Mistake, Uneven, Untidy, Wrong

差

Be Short, Differ, Difference, Different, Differential, Disappointing, Discrepancy, Dispatch, Duty, Errand, Error, Fall short, Irregular, Job, Lack, Make a mistake, Messenger, Mismatched, Mistake, Not up, Office, Under, Uneven, Wrong