You conjugated "be" improperly. You should have used the present plural version of "be" which is "are," as in, "there are a couple more." You used "is" which is third person.

If you want to correct people (or just make coherent posts) I suggest using Mozilla Firefox. It automatically spell checks and has a feature to use add-on search engines in the upper right corner. I use dictionary.com and wikipedia.com among others. You don't have to know how to do it right, you just have to know how to look it up.