Mandarin ability with hui neng and keyi

01 / Understand

Use hui for a learned skill in a clear context

我会骑自行车 says the speaker knows how to ride a bicycle. Hui appears before the action phrase. In a skills conversation, the question concerns an acquired ability. The sentence does not report that the person is riding at this moment or that a particular ride has already occurred.

Previous experience is a different claim. Someone may have tried riding with assistance but not yet be able to ride independently. Conversely, a person’s skill can remain even when current circumstances prevent using it. The construction should answer the actual question about knowledge or skill rather than a loosely related fact about history.

Hui has other uses, including predictions, so the lexical item does not always mean know how to. The present lesson begins with familiar learnable activities and then contrasts a prediction explicitly. Context is part of the interpretation. Do not build a universal translation rule from one useful introductory use.

02 / Understand

Use neng for capacity and circumstances

Neng can describe whether an action is possible under the relevant conditions. 我今天能来 says the speaker can come today. This may concern scheduling, transport, or another practical circumstance. It is not normally a claim that the speaker has learned the skill of coming.

A measured capacity also fits neng, such as how much someone can read in a given period. The quantity makes the claim more precise than simply knowing how to read. Keep a duration distinct from a clock time: an hour of available work and one o’clock identify different kinds of information.

A temporary obstacle need not remove the underlying skill. A person who knows how to ride a bicycle may be unable to ride today because the bicycle is unavailable. Explaining the constraint keeps the listener from interpreting the statement as permanent inability. A short time word can make a large difference to the scope of the claim.

03 / Understand

Use keyi to ask about permission or an acceptable option

我可以坐这里吗？ asks whether sitting here is permitted or acceptable. The action is physically possible in the ordinary scenario; the missing information is permission. A person who can perform an action may still need authorization to do it in a particular setting.

Keyi can also describe a feasible option, so context matters. It should not be treated as a word that only ever refers to a formal rule. In the controlled seat question, the social permission reading is made explicit. Other examples can concern what a room can accommodate or what option is reasonable.

The lesson uses fictional classroom and everyday situations rather than asserting policies at real venues. To answer a permission question, respond to the actual action and scope. Permission to sit in this seat is not permission to move every chair, and permission today does not automatically establish a permanent rule. Keep the stated conditions in view.

04 / Understand

Negate the intended kind of ability

不会 can deny a learned skill in the skills context: 我不会游泳. 不能 can deny practical possibility or express that an action is not allowed. The interpretation depends on the scene. A cannot sentence needs enough context to distinguish inability from prohibition when that difference matters.

Do not translate no need as cannot. The obligation lesson’s 不用 expresses lack of necessity, which leaves open whether the action is possible or permitted. A person who does not need to bring a book may still be allowed to bring it. Negative meanings are not interchangeable merely because English uses not in several of them.

A potential complement such as 看不懂 says that the result of understanding through reading cannot be achieved in the relevant conditions. That is different from a rule forbidding reading. This lesson introduces the contrast as a recognition task. The later result and potential patterns provide the morphology needed for wider production.

05 / Understand

Ask a focused question and give a matching answer

A ma question can ask whether a skill exists or whether an action is possible. An affirmative negative question such as 会不会 can also ask about ability. Use one clear ordinary question pattern rather than adding every question device at once. The form should make the requested information easy to identify.

The answer can repeat the modal when the action is understood. A fuller answer is useful if the scope needs qualification: a little, today only, or with a particular resource. Do not claim a broad skill merely to answer quickly when the accurate answer is narrower. A limited ability statement can be more useful to a listener making a plan.

Question words request a missing detail rather than a yes or no response. Asking when someone can come is not the same as asking whether they can come at all. Keep the time word in its normal information position and supply an answer that resolves that detail. The modal remains before the action phrase.

06 / Understand

Separate skill from prediction, wish, and actual performance

In a suitable context, 明天会下雨 predicts rain. Rain is not learning a skill. The predicate and situation identify this use of hui. This contrast prevents a useful first translation of know how to from becoming a rule that fails in ordinary weather or future statements.

Xiang expresses a wish, while progressive zai presents an activity in progress. Neither automatically establishes a general skill. Performance quality can be described separately with a de complement. Someone can know how to do something yet do it poorly on one occasion, and someone can attempt an activity without mastering it.

When reviewing several sentences, name the type of claim each makes: skill, possibility, permission, prediction, desire, experience, or current performance. These labels are tools for interpreting a concrete scene. They should not become rigid word lists that deny contextual overlap. The exercises choose scenarios where the central difference is clear and useful.

07 / Understand

Give conditions that make the answer useful

A condition can limit practical possibility: 如果你有时间，就可以来. The sentence offers coming as an option if the listener has time. It does not assert that free time already exists. Preserve the condition when reporting the plan to someone else.

A reason can explain a negative answer without changing its category. If a person cannot attend because of another commitment, the explanation concerns circumstances. If someone lacks a learned skill, offering a different time does not automatically solve the problem. The listener’s next step depends on an accurate account of the limit.

For production, write one learned skill claim, one temporary possibility claim, and one permission question. Add a condition to one of them. Retrieve the set later and explain why the chosen modal fits the scenario. The goal is to communicate a useful scope of ability, not to assign every English can to the same Mandarin word.

Notice the difference

Common mistakes

From understanding to using

Make your own example.

Try these without answer choices. Say your answer aloud or write it below, then compare your reasoning with the model.