In grammar, tense is a category that expresses time reference. Tenses are usually manifested by the use of specific forms of verbs, particularly in their conjugation patterns.
The main tenses found in many languages include the past, present, and future. Some languages have only two distinct tenses, such as past and nonpast, or future and nonfuture, while some languages make finer tense distinctions, such as remote vs recent past, or near vs remote future. There are also tenseless languages, like most of the Chinese languages, however, these languages do refer to time in different ways.
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