So many things that I didn't know! Grammar for smarter than your average dummy

English is hard. Terribly, terribly bastardized and convoluted.
Makes no sense except in use.

I thank my lucky stars regularly that I learned English as a primary language, and never had to make sense of it as an adult.
Learning French from middle school on, and more recently Spanish has helped to improve my English but we can all use a little help...

My favorite from the list is:

• The singular of biceps is biceps; the singular of triceps is triceps. There’s no such thing as a bicep; there’s no such thing as a tricep.

Although I think that I might still get this wrong regularly:

• He stayed awhile; he stayed for a while.

-Rachel