Clause Agreement Grammar
Beware of sentences and clauses that are in a sentence between the subject and the predicate. To make sure you have the right person and number for the verb, eliminate mentally intermediate sentences and clauses. Novels are the precursor, and therefore the verb must be plural. A common mistake is to choose the verb that corresponds to the complement in the relative sentence (form). Remember that the complement is not the precursor of the pronoun. This type of relative sentence provides only additional information. The information can be very interesting and important for the larger conversation, but it is not essential for the accurate identification of the name. The “das” cannot be used as a relative pronoun in a non-restrictive rate. Commas are always used at the beginning and end of this type of relative sentence. . . .