Grammar reference

我 / 你

✗ Assuming 我/你 sound like the "gua"/"lu" heard for "I"/"you" in Chinese-Indonesian speech — those are Hokkien pronunciations, not Mandarin.

✓ In Standard Mandarin these are wǒ (我, I/me) and nǐ (你, you) — completely different sounds from the Hokkien-derived slang.

豆腐

✗ Thinking the Indonesian word "tahu" (tofu) is how Mandarin speakers say it too.

✓ "Tahu" comes from a Hokkien reading of 豆腐; in Standard Mandarin the same characters are read dòufu — say the Indonesian version and staff may not follow.

面

✗ Reading 面 (noodles) as "mie", the way it's said in Indonesian.

✓ "Mie" is a Hokkien-flavoured borrowing; Standard Mandarin pronounces the same character miàn.

米粉

✗ Assuming "bihun" is simply the Mandarin word too — it's actually a Hokkien reading of these very same characters.

✓ Standard Mandarin reads 米粉 (rice vermicelli) as mǐfěn — same dish, very different sound from "bihun".

茶

✗ Expecting the Mandarin word for "tea" to sound like "teh", since both ultimately trace back to the same Chinese root.

✓ "Teh" travelled out through a Hokkien-speaking trade route, while Standard Mandarin kept its own reading, chá — two branches of the same word, no longer sounding alike.

酱油

✗ Looking for a Mandarin word close to "kecap" when ordering food or reading a recipe.

✓ Standard Mandarin calls soy sauce 酱油 (jiàngyóu) — an entirely different-sounding word from the Hokkien-derived "kecap".

商店

✗ Expecting "toko" to be recognizable to a Mandarin speaker as a word for "shop".

✓ "Toko" is an old loanword; Standard Mandarin uses 商店 (shāngdiàn) or simply 店 (diàn) — unrelated in sound.

肉丸

✗ Assuming "bakso" is understood in Mandarin the way it's understood in Indonesia, as a specific dish in its own right.

✓ Standard Mandarin's plain word for a meatball is 肉丸 (ròuwán) — say "bakso" to a speaker from mainland China and they may not picture the same bowl of soup.

先生

✗ Expecting 先生 to mean "herbalist/healer", the way "sinshe" is used for a traditional Chinese-medicine doctor in Indonesian.

✓ In today's Standard Mandarin, 先生 (xiānshēng) has narrowed to mean just "Mr./sir" — the "healer" sense that "sinshe" kept is largely historical.

仙草

✗ Not realizing that "cincau" and 仙草 are, historically, the very same word.

✓ Standard Mandarin reads the plant/jelly's name 仙草 as xiāncǎo — recognizable on a menu once you know it's the same word as "cincau", just pronounced very differently.

会 / 能 / 可以

✗ Using one all-purpose word for "bisa" in every context, the way Indonesian does.

✓ Mandarin splits it three ways: 会 for a learned skill (我会说中文), 能 for physical/circumstantial ability (我今天不能来), 可以 for permission (我可以进来吗？).

了 / 过

✗ Reaching for one marker to translate "sudah" every time, regardless of whether it's a completed action or a past experience.

✓ 了 marks a completed action (我吃了 — I ate/have eaten), while 过 marks a past experience, "have ever done" (我去过中国 — I've been to China before).

有 / 在

✗ Using the same word for "there is a book on the table" and "the book is on the table", like Indonesian "ada".

✓ 有 introduces existence (桌上有书 — there's a book on the table), while 在 locates something already known (书在桌上 — the book is on the table) — the word order flips between the two.

个 / 位

✗ Copying Indonesian's "tiga orang guru" pattern and putting 人 straight after the number, as in ✗三人老师.

✓ Mandarin needs a measure word between number and noun — 三个老师 (or the more polite 三位老师); 人 only stands alone when it IS the noun, e.g. 三个人.

点 / 小时

✗ Using one word for both, since Indonesian "jam" covers clock time and duration alike (jam 3 / tiga jam).

✓ Mandarin splits it: 点 for a point on the clock (三点 — 3 o'clock) and 小时 for a duration (三个小时 — three hours).

明年

✗ Translating "tahun depan" (year-front) word for word and landing on 前年 — which actually means "the year before last", not "next year".

✓ "Next year" is its own single word, 明年 (míngnián) — Chinese time words aren't built from "front/back" the way Indonesian's are, so each has to be learned on its own: 前年 (2 yrs ago), 去年 (last year), 明年 (next year), 后年 (2 yrs from now).

不 / 没 / 不是

✗ Mapping "tidak" and "bukan" straight onto 不 and 不是 and stopping there, missing 没 for things that didn't happen or aren't possessed.

✓ 不 negates general verbs/adjectives (我不去 — I'm not going), 没(有) negates completed actions or possession (我没去 — I didn't go; 我没有钱 — I have no money), and 不是 negates "to be" (他不是老师 — he's not a teacher).

知道 / 认识

✗ Using one verb for both "knowing a fact" and "knowing/recognizing a person", the way Indonesian "tahu" can stretch to cover both.

✓ 知道 is for facts/information (我知道他的名字 — I know his name), while 认识 is specifically for knowing/recognizing a person, place, or character (我认识他 — I know him).

用 / 穿 / 戴

✗ Reaching for 用 (use) for everything "pakai" covers, including putting on clothes or accessories.

✓ 用 is for tools/objects (用筷子 — use chopsticks), 穿 is for clothes you step or pull on (穿衣服, 穿鞋), and 戴 is for things worn elsewhere on the body (戴眼镜, 戴帽子).

了

✗ 我已经吃 (calquing "saya sudah makan") and stopping there — the sentence feels unfinished in Mandarin without an aspect marker.

✓ 我吃了 / 我已经吃了 (for completion) or 我吃过了 (for the experience of having eaten) — 了 or 过 is what actually signals "done", not 已经 on its own.

新老师

✗ ✗老师新 — keeping Indonesian's noun-then-adjective order ("guru baru") when the adjective directly describes the noun.

✓ 新老师 — the describing word comes BEFORE the noun in Mandarin, the mirror image of Indonesian.

我认识的人

✗ Keeping Indonesian's noun-then-"yang"-then-clause order ("orang yang saya kenal" — the person that I know) and tacking the description on AFTER the noun.

✓ 我认识的人 — the whole descriptive clause moves BEFORE the noun and ends with 的, the mirror image of where "yang" sits in Indonesian.

吗

✗ ✗你叫什么吗？— stacking 吗 onto a sentence that already has a question word, out of habit from marking every question with "apa/-kah".

✓ 你叫什么？— a question word (什么/哪儿/谁) already makes it a question; 吗 is only for yes/no questions that have no question word at all.

两本书

✗ ✗两书, dropping the measure word the way colloquial Indonesian can drop "buah" in "dua buku".

✓ 两本书 — Mandarin always needs a measure word between a number and a noun; which one depends on the noun (本 for bound things, 个 as the default, 张 for flat things...).

比

✗ ✗它更大比这个, tacking the comparison word on at the end the way "lebih besar dari ini" does.

✓ 它比这个更大 — the 比 phrase ("than X") has to come BEFORE the adjective in Mandarin, the reverse of Indonesian's "lebih ... dari".

是

✗ ✗他老师, dropping the linking verb the way Indonesian can say "dia guru" with no "adalah" at all.

✓ 他是老师 — Mandarin needs 是 to link a subject to a noun, even where Indonesian is happy with no linking word at all.

学中文学了两个小时

✗ ✗我学中文两个小时, bolting the duration on after the object the way "belajar bahasa Mandarin dua jam" does.

✓ 我学中文学了两个小时 (or 我学了两个小时的中文) — when a duration follows a verb that already has an object, Mandarin repeats the verb or moves the duration in front of 的.