In Chinese (Simplified) grammar, the Imperfective Aspect refers to actions, events, or situations that are ongoing, continuous, or habitual. It is often used to highlight the progress or duration of an action rather than its completion. In Chinese, this aspect is often expressed using the particle “正在” (zhèngzài) or “在” (zài) before the verb. Additionally, the aspect marker “了” (le) is commonly used to indicate a change of state or the start of an action. Understanding and using the Imperfective Aspect in Chinese is crucial for learners to express themselves effectively and accurately.