让 / 叫 / 请 / 使 / 令 — pivotal causative constructions
A causative sentence in Mandarin says 'A makes / lets / asks B do something'. The structure is rigid: subject + causative verb + object + V (+ rest). The object of the causative verb is ALSO the subject of the second verb — grammarians call this a 'pivot'. Five verbs share this pattern but differ in tone and register: 让 ràng (let / make — neutral, all-purpose), 叫 jiào (tell / order — slightly more direct), 请 qǐng (ask politely / invite), 使 shǐ (cause [someone] to feel — for emotions / abstract effects, often written), 令 lìng (cause to feel — formal / written, also for emotions). Picking the right one is mostly about politeness and what kind of effect you're describing — physical action vs. internal feeling.
The pivotal pattern — A + V_caus + B + V2
Every causative shares one shape. A + 让 / 叫 / 请 / 使 / 令 + B + V2 (+ rest). A is the causer. B is both the OBJECT of the causative verb AND the SUBJECT of the second verb — the pivot. 妈妈让我吃饭。 = Mom let / made me eat. Here 我 is the object of 让 and the subject of 吃饭. 老师叫学生回答问题。 = The teacher told the students to answer the question. 我请他吃饭。 = I invited him to dinner / I treated him to a meal. 这件事让我很高兴。 = This matter makes me very happy. The pivot construction is symmetric for all five verbs. The negation 不 sits before the causative verb (妈妈不让我吃 = mom won't let me eat), NOT before the second verb.
让 — let / make (the neutral default)
让 is the workhorse — it covers both 'let' (permit) and 'make' (cause), without being rude. Context decides which English verb fits. (1) Permission: 妈妈让我去玩。 = Mom let me go play. 请让我看一下。 = Please let me have a look. (2) Causing / making: 这个电影让我哭了。 = This movie made me cry. 他的话让我很生气。 = His words made me very angry. (3) Asking someone to do something (mid-politeness): 我让他给你打电话。 = I'll have him call you. 让 is neutral — it doesn't push, doesn't soften. When in doubt between the five, 让 is almost always safe. Negation: 不让 = doesn't let / won't allow: 爸爸不让我开车。 = Dad won't let me drive.
叫 — tell / get someone to do (slightly stronger)
叫 in this causative use carries a 'tell, order, get someone to' flavor. It's a touch more direct than 让 — closer to a command than a request. 老师叫学生写作业。 = The teacher told the students to do homework. 妈妈叫我回家。 = Mom told me to come home. 叫 is fine in informal speech and within families / authority structures, but it would sound bossy from a stranger. Note 叫 is the same character as 叫 = 'to be called / to call' (lesson 2) — context distinguishes: 他叫小李 = he is called Xiao Li (naming); 他叫小李回家 = he told Xiao Li to go home (causative). The causative 叫 can almost always be replaced by 让 for a softer feel: 老师让学生写作业 is gentler than 老师叫学生写作业, but both are correct. Negation: 不叫 is rare — speakers typically reframe with 不让.
请 — ask politely / invite
请 qǐng is the polite causative — 'invite, please ask, request'. You met 请 in lesson 10 as 'please / invite'; the causative use is the same word in a pivot. 我请他吃饭。 = I invited him to dinner. 老师请我回答问题。 = The teacher asked me to answer the question (politely). 请你慢一点说。 = Please speak a bit more slowly. (Here 你 is the pivot, 慢一点说 is the action.) 请 carries hospitality and respect — it's also what you say when you treat someone (paying for the meal). Compared to 让 (neutral) and 叫 (direct), 请 is the most polite of the three for asking someone to do something. Negation is unusual; you'd phrase the negative with 不请 = not invite, but for 'didn't ask someone to', 没让 / 没叫 are more natural.
使 / 令 — cause (someone) to feel (formal / abstract)
使 shǐ and 令 lìng are the abstract / formal causatives. They almost always take an emotion or abstract effect as the second predicate, and they rarely take a physical action. 这件事使我很高兴。 = This matter makes me very happy. 她的话令人感动。 = Her words are moving (lit. cause [one] to be moved). 这本书使我想起小时候。 = This book makes me think of my childhood. 令人 = 'cause one to / makes people' is a fixed pattern: 令人难过 (saddening), 令人高兴 (gladdening), 令人吃惊 (surprising). 使 is somewhat more common in modern speech; 令 is more written / literary. Both are interchangeable with 让 in conversation: 这件事让我很高兴 is the everyday version. The split is register, not meaning. Use 使 / 令 in formal writing, speeches, or set phrases; use 让 when speaking with friends.
Choosing — politeness and effect type
Two questions decide the verb. (1) PHYSICAL ACTION or INTERNAL FEELING? Physical action → 让 / 叫 / 请. Internal feeling / abstract effect → 使 / 令 (formal) or 让 (everyday). You'd say 这本书让我哭了 OR 这本书使我哭了 (the book made me cry — both work, 使 is more written). You'd NOT say 使我吃饭 (formal verbs don't fit physical actions). (2) POLITENESS LEVEL for asking someone to do something? Polite → 请. Neutral → 让. Direct / authoritative → 叫. Same content, three temperatures: 请你帮我 (please help me — polite request), 让他帮我 (have him help me — neutral), 叫他帮我 (tell him to help me — directive). Mismatching can sound strange: a stranger using 叫 with you feels rude; a parent using 请 with a small child sounds oddly formal.
Common patterns and traps
让一让 = please make way / move aside (lit. let-let). Heard in crowded places. 让我想想 = let me think. 请坐 = please sit. 请问 = excuse me / may I ask. 令人 + Adj = makes one feel X (令人感动 = touching, 令人吃惊 = astonishing). Trap 1: don't double-mark with 把. WRONG: 我让把他来. Right: 我让他来 = I'll have him come. The pivot construction does the object-marking work; 把 isn't needed. Trap 2: don't omit the pivot. WRONG: 妈妈让吃饭. Right: 妈妈让我吃饭 = mom let me eat. Even when the pivot is obvious from context, Mandarin requires it explicitly. Trap 3: don't put time/place adverbs between the pivot and V2 weirdly — keep adverbs with their verb: 妈妈让我现在回家 (right) not 妈妈让现在我回家.
