The Loss of Old English Inflections

In just over 60 years, the chronicle went from entisum ere to en this year. About 20 years later, the entry reads on this yer. Now year has also lost its inflection. So most of those inflectional endings, which were still lingering around, were finally dropped for good. But note that i said english lost most of s inflections. As we have already seen, a few inflections still linger in the language. One place where we still use them is the distinction between singular and plural. We have one deer and many deer, one fish and a school of fish. Why do we have all those forms to day? Some words don't change