Here's a breakdown:
* Past tense: Indicates an action that happened in the past. (e.g., "I walked to the store yesterday.")
* Present tense: Indicates an action happening now or a state of being that is true at this moment. (e.g., "I am walking to the store now.")
* Future tense: Indicates an action that will happen in the future. (e.g., "I will walk to the store tomorrow.")
There are also other tenses, such as the present perfect (e.g., "I have walked to the store many times"), past perfect (e.g., "I had walked to the store before it started raining"), and future perfect (e.g., "I will have walked to the store by the time you arrive").
Tense is essential for understanding the sequence of events and the relationship between actions in a sentence or narrative.