Tenses in Chinese grammar differ from those in English in several ways. Unlike English, Chinese does not have verb conjugations to indicate tense. Instead, Chinese relies on adverbs or time indicators to express the time of an action.

The most commonly used adverb to denote the past tense is “le”, which is placed after the verb. For example, 我吃饭了 (wǒ chīfàn le) means “I ate” or “I have eaten”.

To express the future tense, Chinese uses words such as 会 (huì) or 要 (yào) before the verb. For example, 我明天会去看电影 (wǒ míngtiān huì qù kàn diànyǐng) means “I will go to watch a movie tomorrow”.

Chinese also uses time indicators to specify the time of an action. For instance, 昨天 (zuótiān) means “yesterday”, 今天 (jīntiān) means “today”, and 明天 (míngtiān) means “tomorrow”.

It is important to note that Chinese does not differentiate between present simple and continuous tenses. Both can be expressed using the same sentence structure, with the context determining the intended meaning.

Overall, understanding tenses in Chinese grammar requires a grasp of adverbs and time indicators along with the context in which they are used.