There are a lot of ways to construct a sentence but in many cases, the best way to convey meaning in a succinct and clear manner is to use verbs correctly. A verb is a word that shows action. It is often thought of as the heart of a sentence. The verb can be further broken down into active or passive. This is often referred to as active or passive voice. An active verb is when the verb is clearly the subject, or 'the doer,' of the sentence.