1. 过 - Verb Suffix (1) 过 can serve as an aspect particle to indicate that the event is completed. In this case, 过 must immediately follow a verb in a sentence.
2. 过 - Verb Suffix (2) 过 can be placed after a verb to indicate experience from a past action.
3. Adj.+过 Most of time 过 is used with a verb, but it also can be placed after an adjective.
4. 过 can be used with "没有 or 吗" to raise a question.
5. Negation: The negative word 没 can be used with verb and 过 to negate the sentence.
6. 过 - 从来没/没有 is used to express strong negation.
7. 过 - 还没有+verb+过+(呢) means "not yet" or "never". 呢 is optional but is often used in conversation.
8. Verb+过 can be used with frequency word.
9. 过 can express Completion by the present time, which is equivalent to Present perfect tense in English.
10. 过 can also express Completion in the past, the equivalent expression to past perfect tense in English.
11. 过 can express Completion in the future. It uses the same pattern as completion in the past. The difference in meaning is conveyed by the context.
12. 过 - with Modal Particle 了 A sentence with 过 can have modal particle 了 at the end to emphasize 'already'.
13. 过 - with 曾/不曾 曾/曾经 can be used with 过 to make the speech sound more formal. The negative form is '不曾/未曾'+verb+过.
14. The fixed expressions “比不过” or “比得过” means comparision.
15. 过 - with "来" or "去" Together with Directional verbs "来" or "去", the phrase expresses direction from the speaker's perspective. 来 means "come" (towards the speaker), while 去 means "go" (away from the speaker).
16. 过分/过头 means over the top
17. 过 - Telling the time: past 几点 + 过 + 几分 = [minutes] past [hour]. 分 means minute; 点 means hour；过 means 'past'.
18. 再过+duration of time 再过 can be placed before time to express for how long a certain action will occur.
19. 过 - Talking about crossing verb + 过 can express the meaning of "across".
