Nouns and determiners A1 A2 B1

Articles: a, an, the, and no article

Choose between indefinite, definite, and no article based on shared knowledge, countability, and specificity.

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図解ガイド

Articles: open, point, or widen

ARTICLE = listener logic: can they identify it?

Start with the noun:

1) one countable thing (one/two possible)
   ├─ new/not identified  →  a/an opens
   │  I saw a dog.
   └─ known/identified    →  the points
      The dog was barking.

2) many things or uncountable stuff/idea
   ├─ general meaning     →  Ø (no article) widens
   │  I like dogs.
   │  Water is important.
   └─ specific/identified →  the points
      The dogs next door bark at night.
      The water in this bottle is cold.

Use a/an to introduce one countable thing, the when the listener can identify it, and no article for general many/stuff ideas.

Introduction

Articles are listener logic

Articles show how a noun is being introduced to the listener. Use a/an for one singular count noun that is new or not yet identifiable, the for something identifiable, and no article for many general plurals and uncountable nouns. I saw a dog. The dog was barking. I like dogs. Notice that article choice depends on meaning in the sentence, not only on the noun. Dog can take a, the, or no article when the situation changes.

Core 文法：A1 語彙：A1 Neutral

I saw a dog.

A dog is mentioned for the first time, so the listener cannot identify it yet.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

subject

The speaker introduces the experience.

saw

verb

A simple past verb introducing a new noun.

a dog

indefinite_noun_phrase

Use a/an when one singular count noun is new or not yet identifiable.

ひとまとまりで覚える

Core 文法：A1 語彙：A1 Neutral

The dog was barking.

After the first mention, use the for the same dog.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

The dog

definite_noun_phrase

The noun is now identifiable because it was mentioned before.

ひとまとまりで覚える

was barking

verb_phrase

Says what that known dog was doing.

Core 文法：A1 語彙：A1 Neutral

I like dogs.

Dogs means dogs in general, not a specific group.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

I like

subject_verb

A common frame for opinions.

dogs

zero_article_plural

Use no article for a plural noun when speaking generally.

ひとまとまりで覚える

Cognitive metaphor

A/an opens, the points, no article widens

Think of articles as a focus tool. A/an opens a new item in the conversation, like placing something on the table. The points to an item already on the table, or one the listener can find from context. No article often widens the view to a whole category or substance. Before choosing, ask three questions: Is the noun countable? Is it singular? Can the listener identify exactly which one or which group?

Core logic

First check countability

Countability is the first gate. A singular count noun normally cannot stand alone; it needs a determiner such as a/an, the, my, this, or one. She is a doctor. Use an before a vowel sound and a before a consonant sound, not simply a vowel letter: I waited an hour. She studies at a university. Plural count nouns and uncountable nouns can appear with no article when they are indefinite or general: We bought furniture.

Core 文法：A1 語彙：A1 Neutral

She is a doctor.

Singular countable job nouns normally need a determiner.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

She

subject

The person being described.

linking_verb

Links the subject to a job or role.

a doctor

indefinite_job

Use a/an with singular countable job names.

ひとまとまりで覚える

Exception 文法：A1 語彙：A1 Neutral

I waited an hour.

Article choice follows sound, not spelling.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

I waited

subject_verb

A simple frame for time spent.

an hour

an_before_vowel_sound

Use an before a vowel sound; the h is silent in hour.

ひとまとまりで覚える

Exception 文法：A1 語彙：A1 Neutral

She studies at a university.

University starts with a vowel letter but a consonant sound, so use a.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

She studies

subject_verb

Introduces an activity.

at a university

place_phrase

Use a before university because it begins with a consonant sound, /y/.

ひとまとまりで覚える

Core 文法：A1 語彙：A2 Neutral

We bought furniture.

Furniture is uncountable here, so do not use a.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

We bought

subject_verb

Introduces something obtained.

furniture

zero_article_uncountable

Uncountable nouns can appear with no article when indefinite.

ひとまとまりで覚える

Core pattern

Use a/an for first mention

Use a/an when you introduce one member of a larger group and the exact identity is not important or not identifiable to the listener yet. This is common after there is, with jobs, and with descriptions. There’s a café on the corner. The article a does not mean the café is strange or unimportant; it means you are presenting it as one possible café, new to the listener. After this, if you talk about the same café, you usually switch to the.

Core 文法：A1 語彙：A1 Neutral

There’s a café on the corner.

A café is introduced as one café, not yet known to the listener.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

There’s

existence_frame

Introduces that something exists.

a café

indefinite_noun_phrase

Use a/an to introduce one new singular count noun.

ひとまとまりで覚える

on the corner

location_phrase

Gives the location.

Core pattern

Use the for identifiable nouns

Use the when the listener can identify the noun. The reason may be a previous mention, the immediate situation, shared local knowledge, or words that limit the noun. The café opens at seven. Where is the station? In these sentences, the listener can connect the noun to a known café or the relevant station. The often answers which one? Use it for specific plural and uncountable nouns too when the group or substance is limited.

Core 文法：A1 語彙：A1 Neutral

The café opens at seven.

The refers back to the café introduced earlier.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

The café

definite_subject

The café is identifiable because it was just mentioned.

ひとまとまりで覚える

opens at seven

verb_phrase

Gives information about that known café.

Question 文法：A1 語彙：A1 Neutral

Where is the station?

The station means the relevant or expected station in that place.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

Where is

question_frame

Asks for a location.

the station

definite_place

Use the when the relevant place is identifiable from context.

ひとまとまりで覚える

Contrast

No article vs the

No article is the main contrast with the for plural count nouns and uncountable nouns. Use no article for a whole category, activity, or substance in general: Dogs are friendly. Water is important. Use the when you limit that category or substance to a known set: The dogs next door bark at night. The water in this bottle is cold. This contrast is especially important after verbs such as like, hate, need, and study.

Core 文法：A1 語彙：A1 Neutral

Dogs are friendly.

This means dogs as a category.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

Dogs

zero_article_plural

Use no article for a plural noun in general meaning.

ひとまとまりで覚える

are friendly

description

Gives a general opinion.

Contrast 文法：A2 語彙：A1 Neutral

The dogs next door bark at night.

This is not about all dogs; it is about a known group of dogs.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

The dogs next door

definite_plural

The group is limited and identifiable.

ひとまとまりで覚える

bark at night

verb_phrase

Says what that specific group does.

Core 文法：A1 語彙：A1 Neutral

Water is important.

Water means water generally, not a specific amount.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

Water

zero_article_uncountable

Use no article for an uncountable noun in general meaning.

ひとまとまりで覚える

is important

description

Gives a general fact.

Contrast 文法：A2 語彙：A1 Neutral

The water in this bottle is cold.

The is used because the water is limited by in this bottle.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

The water in this bottle

definite_uncountable

The phrase limits the uncountable noun to a specific amount.

ひとまとまりで覚える

is cold

description

Describes that specific water.

Usage rules

Questions and negatives

Questions and negatives keep the same article logic. A question can ask for any one item, or for an identifiable item. Is there a pharmacy near here? asks for any pharmacy in the area. A negative also keeps the noun type clear: I don’t have a car. means no car in my situation, not no specific car. Useful frames are Is there a/an + singular count noun?, Where is the + place?, and I don’t have a/an + singular count noun.

Question 文法：A1 語彙：A2 Neutral

Is there a pharmacy near here?

The speaker asks for any pharmacy, not a known pharmacy.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

Is there

question_frame

Asks whether something exists nearby.

a pharmacy

indefinite_place

Use a/an when any one example is acceptable.

ひとまとまりで覚える

near here

location_phrase

Limits the search area.

Negative 文法：A1 語彙：A1 Neutral

I don’t have a car.

Negatives do not remove the need for a/an with singular count nouns.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

I don’t have

negative_frame

A common negative possession frame.

a car

indefinite_noun_phrase

A singular count noun still needs a determiner in a negative sentence.

ひとまとまりで覚える

Danger zone

Common article traps

Two traps cause many article errors. First, do not leave a singular count noun bare. Mistake: I bought new phone. Correct: I bought a new phone. Second, do not use the for a general plural or uncountable noun just because your language would. Mistake for a general meaning: I like the music. Correct: I like music. But the is correct when the music is specific, for example at a party. Most personal names, city names, languages, and school subjects also use no article.

Mistake 文法：A1 語彙：A1 Neutral

I bought new phone.

Phone is a singular count noun, so it needs a determiner.

Corrected 文法：A1 語彙：A1 Neutral

I bought a new phone.

A new phone is the correct singular count noun phrase.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

I bought

subject_verb

The action frame.

a new phone

indefinite_noun_phrase

Use a/an before a new singular count noun.

ひとまとまりで覚える

Mistake 文法：A1 語彙：A1 Neutral

I like the music.

This is only a mistake when the speaker means music in general.

Corrected 文法：A1 語彙：A1 Neutral

I like music.

Music means music generally, so no article is used.

意味のかたまり

単語ごとではなく、意味のかたまりで文を読んでみましょう。

I like

opinion_frame

Introduces a general preference.

music

zero_article_uncountable

Use no article for an uncountable noun in general meaning.

ひとまとまりで覚える

Summary

The practical decision path

Choose articles in this order. First, decide whether the noun is singular count, plural count, or uncountable. If it is singular count, give it a determiner. Next, decide whether the listener can identify the noun. If not, a/an is usually right for a singular count noun. If yes, use the. For plural count and uncountable nouns, use no article for general or indefinite meaning, and the for specific, limited, or shared meaning. Article choice is shared-knowledge logic.

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Articles: a, an, the, and no article

Articles: open, point, or widen

Articles are listener logic

意味のかたまり

意味のかたまり

意味のかたまり

A/an opens, the points, no article widens

First check countability

意味のかたまり

意味のかたまり

意味のかたまり

意味のかたまり

Use a/an for first mention

意味のかたまり

Use the for identifiable nouns

意味のかたまり

意味のかたまり

No article vs the

意味のかたまり

意味のかたまり

意味のかたまり

意味のかたまり

Questions and negatives

意味のかたまり

意味のかたまり

Common article traps

意味のかたまり

意味のかたまり

The practical decision path

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