JLPT N5 Grammar Essentials: The Building Blocks

If you are starting Japanese, the fastest way to feel at home is to learn a small set of grammar patterns and then use them in short, real sentences. This article walks through the core building blocks tested at JLPT N5: the everyday particles wa, ga, o, ni, and de; the polite frames desu and masu; the tai form for wants; te kudasai for polite requests; arimasu and imasu for existence; and masen ka for gentle invitations.

N5 is the most basic of the five JLPT levels (N5 through N1, where N5 is the easiest and N1 the hardest). The next step up from N5 is N4. Because N5 grammar keeps sentences short and predictable, it is a friendly place to build confidence before moving on.

These five particles carry most of the grammatical work in a basic sentence, so learning what each one marks solves a large share of N5 questions. In short: wa marks the topic (what the sentence is about), ga marks the subject or new information, o marks the direct object, ni marks a point in time, a destination, or a person you act toward, and de marks the place of an action or the means used.

Compare wa and ga. In watashi wa gakusei desu (わたしは がくせいです, 'I am a student'), wa presents 'I' as the topic. In dare ga kimasu ka (だれが きますか, 'Who is coming?'), ga marks the new-information subject you are asking about.

For o, ni, and de: ringo o tabemasu (りんごを たべます) means 'I eat an apple', where o marks the object. Shichi-ji ni okimasu (しちじに おきます) means 'I get up at seven o'clock', with ni marking the time; Tokyo ni ikimasu (とうきょうに いきます) means 'I go to Tokyo', with ni marking the destination. Basu de ikimasu (バスで いきます) means 'I go by bus', where de marks the means, and kouen de asobimasu (こうえんで あそびます) means 'I play in the park', where de marks the place of the action.

The polite style that N5 focuses on is built from two frames: noun + desu for statements about what something is, and verb + masu (or its negative masen) for actions. These endings signal politeness and are a safe default for talking with people you have just met.

With nouns: kore wa hon desu (これは ほんです) means 'This is a book.' The question form simply adds ka: kore wa hon desu ka (これは ほんですか) means 'Is this a book?'

With verbs, masu is the polite non-past ending and masen is its negative. Ikimasu (いきます) means 'I go / I will go', and ikimasen (いきません) means 'I do not go / I will not go.' Tabemasu (たべます) means 'I eat', and nomimasu (のみます) means 'I drink.' Because masu attaches to a verb's masu-stem, several later patterns build directly on this same stem.

To say what you yourself want to do, use the tai form: take the verb's masu-stem and add tai. This pattern expresses your own wish, so it works most naturally for the speaker's desires.

For example, tabemasu (たべます, 'eat') becomes tabetai (たべたい, 'want to eat'), and ikimasu (いきます, 'go') becomes ikitai (いきたい, 'want to go'). A full sentence: sushi o tabetai desu (すしを たべたいです) means 'I want to eat sushi', and Nihon ni ikitai desu (にほんに いきたいです) means 'I want to go to Japan.'

Two small points help you sound natural. Adding desu (as in tabetai desu) keeps the sentence polite. And because tai describes a feeling, some speakers use ga in place of o with the object, as in mizu ga nomitai (みずが のみたい, 'I want to drink water'); both o and ga are commonly heard here.

To ask someone politely to do something, use the te form of the verb plus kudasai. The key skill here is forming the te form correctly, since kudasai simply attaches to it.

The te form changes depending on the verb. For example, matsu (まつ, 'wait') becomes matte (まって), so matte kudasai (まって ください) means 'Please wait.' Miru (みる, 'look') becomes mite (みて), so mite kudasai (みて ください) means 'Please look.' A few more patterns to notice: kaku (かく, 'write') becomes kaite (かいて), yomu (よむ, 'read') becomes yonde (よんで), and taberu (たべる, 'eat') becomes tabete (たべて).

So you can say kaite kudasai (かいて ください, 'Please write it') or yonde kudasai (よんで ください, 'Please read it'). Learning the te form pays off well beyond requests, because many later grammar points reuse it.

To say that something exists or is somewhere, Japanese uses two different verbs depending on what exists: arimasu for inanimate things and imasu for people and animals. Choosing the right one is a common N5 point.

Use arimasu for objects and things that do not move on their own: tsukue no ue ni hon ga arimasu (つくえの うえに ほんが あります) means 'There is a book on the desk.' Use imasu for living beings that move: koko ni neko ga imasu (ここに ねこが います) means 'There is a cat here', and heya ni gakusei ga imasu (へやに がくせいが います) means 'There is a student in the room.'

Notice the pattern place + ni ... ga arimasu / imasu: ni marks where the thing exists, and ga marks the thing itself. The negatives are arimasen (ありません, 'there is not') for things and imasen (いません, 'there is not') for people and animals.

To invite someone to do something with you, use the polite negative masen plus the question particle ka. Even though it looks negative, this pattern is a warm, gentle way to suggest doing something together.

For example, issho ni ikimasen ka (いっしょに いきませんか) means 'Won't you go with me?' or, more naturally, 'Would you like to go together?' Likewise, ocha o nomimasen ka (おちゃを のみませんか) means 'Would you like to drink some tea?' and eiga o mimasen ka (えいがを みませんか) means 'Would you like to watch a movie?'

The phrase issho ni (いっしょに, 'together') often appears with this pattern and makes an invitation feel friendlier. Because masen ka softens the suggestion, it is generally felt to be a considerate way to ask, though how any invitation lands can differ by person and situation.

The most enjoyable way to get comfortable with N5 grammar is to use each new pattern in one or two short sentences of your own right after you meet it. Small, frequent practice keeps the patterns fresh and lets you notice how the particles fit together.

Try building a tiny sentence for each point: mark a topic with wa, add an object with o, state a want with tai, make a request with te kudasai, or extend an invitation with masen ka. For example, after this article you might say kohii o nomitai desu (コーヒーを のみたいです, 'I want to drink coffee') or issho ni tabemasen ka (いっしょに たべませんか, 'Would you like to eat together?').

As you keep touching these building blocks, N5 sentences start to feel like a natural set of tools rather than separate rules to memorize. From here, the next level, N4, gradually adds longer sentences and more connectors, so the habit of practicing short sentences now gives you a comfortable foundation to build on.