7. The verb following there is singular or plural according to the number of the subject that follows the verb: There is a message for you. There are patients in the waiting room. With compound subjects in which all the coordinate words are singular, a singular verb often occurs, although the plural may also be used: There was (or were) a horse and a cow in the pasture. When a compound subject contains both singular and plural words, the verb usually agrees with the subject closest to the verb, although a plural verb sometimes occurs regardless, especially if the compound has more than two elements: There were staff meetings and a press conference daily. There was (or were) a glass, two plates, two cups, and a teapot on the shelf.
11. It is nonstandard usage to place there between a demonstrative adjective and the noun it modifies: that there car. The same is true of here: these here nails. Placed after the noun, both there and here are entirely standard: that car there; these nails here.