Formula To Replace Suffixes
It seems that I don't have luck finding such formula that could perform the following:
Replace suffixes and it is 3 characters from right. For example, "Walking" should be changed to "Walkers", so "ing" suffix should be replaced with "ers" suffix. I have a substitute formula that replaces "ing", but when "ing" happened to be in the middle of the word it replaces those as well, which I don't want. I also have many different instances that should be replaced. Number of characters in words is not fixed it could be 5, 6 or 10.
I know this is not that difficult question. Thanks in advance.