Verb tense indicates the time when an action occurs, helping to clarify whether it is happening in the past, present, or future. The three main tenses are past, present, and future, each of which can be further divided into simple, continuous, perfect, and perfect continuous forms. For example, "I walk" is present simple, while "I walked" is past simple. Using the correct verb tense is essential for clear communication. It allows speakers and writers to convey when events take place, making it easier for the audience to understand the sequence of actions. For instance, "I will eat" indicates a future action, while "I am eating" shows an action happening now.