Video narration
How can one tiny word, like "play," turn into twelve tenses? Start with a sentence: "She plays." She is the subject-the person doing the action. Play is the verb-the action word. Sometimes the verb gets a helping verb, like "is" in "She is playing." It supports the main verb. Notice the match: "She plays," but "They play." That matching is subject-verb agreement. Now put play on a school-day timeline: present, past, or future-now, before, or later. Here's the big flip: the 12 tenses aren't twelve random rules. They're three times crossed with four ways an action can happen: simple, continuous, perfect, and perfect continuous. So "She plays," "She is playing," and "She has played" are different combinations of time and action pattern. One action, organized into a map. Why twelve? Three times times four patterns. That's why play can make twelve tense patterns.