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常常 vs 经常 (often / regularly)
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How often?
- A new friend asks about your exercise habits.
- I我regularly经常go去gym健身房,weekend周末also也often常常go去swimming游泳。 — "I go to the gym regularly, and at weekends I often go swimming too."
Both mean "often"
- often常常 and regularly经常 both describe frequent actions: I我often常常 / regularly经常to drink tea喝茶.
- In many sentences they are interchangeable.
he他regularly经常works overtime加班。

Build: “He regularly works overtime at weekends.”
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Subject + time + 经常 + verb.
Where they differ
- regularly经常 can be an adjective before a noun: regularly经常nature性(modifier / structural particle)的question问题 — "a recurring problem". often常常 cannot.
- often常常 has a negative not不always常: I我not often不常go去. regularly经常's negative not不regularly经常 is fine too; not不often常常 is not used.
I我not often不常go去the cinema电影院。
Complete: “I don't often go to the cinema.” 我不____去电影院。
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不常 or 不经常; 不常常 is not used.
Negatives
- Say not不always常 or not不regularly经常, not not不often常常.
- Both go before the verb, after the subject and time words: he他weekend周末regularly经常works overtime加班.
Which form is NOT used?
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The negative of 常常 is 不常 or 不经常; 不常常 is not used. 经常 itself is fine but is positive.
Versus tends to往往
- often常常 / regularly经常 = often, simply a frequency.
- tends to往往 = tends to, under a stated condition: on rainy days下雨天tends to往往have traffic jams堵车.
on rainy days下雨天tends to往往have traffic jams堵车。
往往 needs a condition, unlike 常常.
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True. 往往 describes what tends to happen under a condition, so it needs one: 下雨天往往堵车. 常常 can describe simple frequency or the future: 以后常常来.
Recap
- often常常 / regularly经常 = often (mostly interchangeable); regularly经常 can also describe nouns (regularly经常nature性).
- Negatives: not不always常 / not不regularly经常, never not不often常常. tends to往往 needs a condition.
Read the full reference: HSK 5 grammar — Comparing similar adverbs.
A new friend asks about your exercise habits. Close the examples. Say a Mandarin response, then write it in Chinese. Explain briefly in English what the lesson’s pattern adds. Compare with the model, then change one detail and try again.
This is supported productive practice. Compare meaning and structure; your answer need not copy the model. A partner or teacher must hear the spoken response to comment on pronunciation.