I am trying to find out why sheep has the plural sheep. I have found different explanations, such as, "it is because they were seen as uncountable, as in 'a herd of sheep'", "because it comes from ...
After asking what the difference is between a gerund and a participle, I began to wonder if all gerunds end with -ing, since I couldn't think of any that didn't. If they do, why?
The verbs be and go have the nice peculiarity that their various forms (be/was and go/went) come from originally distinct verbs. Are there other such verbs?