Verbs are a vital part of proper English, both written and spoken. In order to do well on the GMAT and in your business career, you must become familiar with the many English verbs and their possible forms. This includes learning how to spot verbs that violate grammar rules.
What is a verb?
Verbs convey actions, events, or states of being. Every complete sentence contains at least one verb:
Mary walked to the park.
The baseball game started at 10 pm
The three of us are all brunettes.
Go to the bank!
If there is no verb in the main clause, or if the verb is in the wrong form, the sentence is referred to as a sentence fragment or incomplete sentence. This type of sentence violates the rules of proper construction and is never the right answer in a Sentence Correction question.