The N4 Grammar Wall: The Points That Trip Everyone (and the Tell for Each)

N5 grammar mostly answers "what is this and where is it." N4 starts asking "who did what to whom, and how do you feel about it." That shift is where a lot of learners stall. The good news is that the wall is made of about eight predictable blocks, and each one has a tell: a small word or ending that gives the answer away once you know to look for it. We taught these to our own kids while traveling Japan, so the examples below are the plain, everyday kind you actually hear. Every sentence here is ours.

One thing before the list. You do not master these by reading about them once. You master them by meeting the same point in twenty short sentences until the tell becomes automatic. So read each block for the idea, then go drill it. Our free quiz is built for exactly that kind of spaced repetition, and we link it at the end.

Passive 受身: things happen to you

The passive takes a verb and points it back at the subject: someone or something does the action, and the subject is on the receiving end. You build it from the plain form. For る-verbs, replace る with られる (食べる → 食べられる). For う-verbs, change the final sound to its あ-row form and add れる (読む → 読まれる). In Japanese the passive often carries a faint sense that the event was unwanted or out of your control, which is why it shows up so much in stories about minor misfortunes.

Notice that the person doing the action is marked with に, and the subject (you) is the one affected. That little に is doing heavy lifting.

Causative 使役: making and letting

The causative says the subject caused someone else to do the action, either by making them (force) or letting them (permission). The endings mirror the passive but with せる instead of れる. For る-verbs: 食べる → 食べさせる. For う-verbs: 読む → 読ませる. Whether it means "make" or "let" comes from context and from the particle on the person doing the action.

Causative-passive: made to do it

This one stacks the two you just learned. The causative-passive means the subject was made to do something by someone else, usually unwillingly. You take the causative stem and put it into the passive: 書かせる → 書かせられる, which in everyday speech for う-verbs often shortens to 書かされる. The feeling is "I had to do this and I did not want to."

Giving and receiving: あげる・くれる・もらう

English uses one verb, "give," and lets word order sort out the direction. Japanese uses three verbs, and the choice depends on who is giving to whom relative to you. This is why learners freeze: the grammar is fine, but the perspective is new.

あげる is for giving away from your side: you give to someone, or one outside person gives to another. くれる is for giving toward your side: someone gives to you or your group. もらう is receiving: you (or your side) get something, and the giver is marked with に or から.

Try the same event with もらう and the camera moves to you: 私は友達に辞書をもらいました (Watashi wa tomodachi ni jisho o moraimashita, "I received a dictionary from my friend"). Same dictionary, different verb, because the subject changed.

The four conditionals: と・ば・たら・なら

N4 hands you four ways to say "if" or "when," and they are not freely swappable. Here is the short version of when each one fits.

Potential form: being able to

The potential form says you can do something. For る-verbs, 食べる → 食べられる (yes, it looks like the passive, and context separates them). For う-verbs, change the final sound to its え-row form and add る: 話す → 話せる, 読む → 読める. する becomes できる, and 来る becomes 来られる. One pattern to watch: the thing you are able to do usually takes が, not を.

Must, may, and must not

Three patterns cover obligation, permission, and prohibition, and they all attach to a verb form you already know. They feel long at first because the "must" pattern is built from a double negative, but the shape is fixed and you can memorize it as one chunk.

~なければならない (must / have to): take the ない-form, drop the final ない, and add なければならない (行かない → 行かなければならない). 行く → 行かなければならない (must go). In casual speech it often shortens to 行かなきゃ.

~てもいい (may / it is okay to): take the て-form and add もいい. 入ってもいいです (you may come in).

~てはいけない (must not): take the て-form and add はいけない. 入ってはいけません (you must not enter). Casually this contracts to ~ちゃいけない.

Looks like vs I heard: そう・らしい

Here learners lose points to a spelling coincidence. There are two different ~そう, plus ~らしい, and they report information in different ways.

~そう (appearance): attaches to the verb stem or adjective stem and means "it looks like / seems about to." It is your own guess from what you see. 雨が降りそうです (it looks like it is going to rain, from the dark clouds you see).

~そう (hearsay): attaches to the plain form and means "I heard that." It passes along what someone told you. 雨が降るそうです (I heard it is going to rain, because the forecast said so).

~らしい: also reports secondhand information, but with a sense that it is based on reliable evidence or general reputation. 田中さんは来ないらしいです (it seems Tanaka isn't coming, from what I gather).

How to study this without drowning

The mistake we see most is trying to learn all eight blocks in one sitting and then mixing them up on the test. A better loop has three steps. First, learn one point as a pattern plus its tell, the way each block above is laid out. Second, write two or three of your own sentences with it, about your real day, so the pattern attaches to something concrete. Third, drill mixed questions, where you have to choose between points, because the exam never tells you which one is coming.

Treat practice questions as a diagnosis, not the lesson. When you miss one, the value is in seeing which tell you ignored, then going back to that block. If you want the format the real exam uses, work through the official JLPT N4 sample questions linked below before you sit it.

This overview is the free, plain-language layer. When you want targeted drills that attack each trap one section at a time, our N4 trap clinic in exam-prep takes these same points and turns them into by-section practice with the common wrong answers built in. Read this page to understand the wall; use the trap clinic to climb it. Either way, the fastest way to make a tell automatic is volume, so start with the free quiz right now.

Still building toward N4? If kanji and particles are tripping you before the grammar even starts, back up to our JLPT N5 study roadmap and get that base solid first. N4 grammar is much friendlier once the N5 foundation holds.