ことがある

ことがある means there are times when. It is a JLPT N4 Japanese grammar pattern used to say that something sometimes happens.

This grammar point often appears in conversation, written explanations, formal notices, and JLPT-style reading questions. If you want to say that something sometimes happens, ことがある is a useful pattern to learn after the N5 basics.

What does ことがある mean?

Use ことがある when you want to say that something sometimes happens.

Natural translations include:

• there are times when
• there are times when
• there are times when

The exact English translation changes with context. Focus on what the grammar point does in the sentence first, then choose the English phrase that sounds natural.

How to form ことがある

Verb dictionary/ない form + ことがある

Examples of the pattern:

• 遅れることがある
• 行かないことがある
• 食べることがある

Pay attention to the word form before the pattern. Many JLPT N4 mistakes happen because the meaning is understood, but the grammar is attached to the wrong form.

When is ことがある used?

Use ことがある in situations like:

• explaining a condition, reason, decision, or time relationship
• making a sentence more specific than a basic N5 pattern
• understanding natural Japanese in conversation or reading

Tone and register:

• neutral unless the grammar itself is marked as casual, humble, honorific, or formal
• Common in daily speech, textbook examples, and JLPT N4 reading questions

ことがある example sentences

• 朝ご飯を食べないことがあります。 — There are times when I do not eat breakfast.
• 電車が遅れることがあります。 — There are times when the train is late.
• 週末に仕事をすることがあります。 — There are times when I work on weekends.
• 夜遅く寝ることがあります。 — There are times when I sleep late.
• 一人で映画を見ることがあります。 — There are times when I watch movies alone.

Read the Japanese sentence first, then check the English translation. Try to notice what the grammar point contributes: condition, timing, limitation, possibility, decision, politeness, or emphasis.

Nuance of ことがある

The key nuance is describes occasional occurrence, not experience.

This matters because ことがある may look simple in English, but the Japanese form tells you whether the speaker is describing a time, a condition, a decision, a possibility, or a social relationship.

For example:

• In context, ことがある helps make the sentence more precise than a direct English translation.
• Compared with たことがある, it has a different focus even when both patterns appear in similar sentences.

ことがある vs たことがある

Both ことがある and たことがある can appear in related sentences, but they are different.

ことがある:

• is the target JLPT N4 pattern in this lesson
• carries the specific nuance explained above

たことがある:

• is useful for comparison because learners often mix it up
• may use a different form, tone, or sentence focus

Quick contrast examples:

• Target pattern: 朝ご飯を食べないことがあります。 — There are times when I do not eat breakfast.
• Related pattern with たことがある: compare the form and ask whether the sentence is about timing, condition, ability, decision, or politeness.

If you are unsure which one to use, identify the main job of the sentence before translating it into English.

Common mistakes with ことがある

Watch out for these mistakes:

• Using it with the wrong verb, noun, or adjective form
• Confusing it with たことがある because the English translation can look similar
• Translating it too literally instead of reading the whole sentence context

A good study habit is to write one short sentence and then change only the grammar point. This makes the difference between similar patterns easier to feel.

Is ことがある on the JLPT?

Yes. ことがある is commonly taught as JLPT N4 grammar.

That means learners should be able to:

• recognize it in reading
• understand its nuance in context
• use it in simple original sentences

For test preparation, do not only memorize the English gloss. Practice identifying the words around the grammar point, because JLPT questions often test structure and context together.

Practice questions for ことがある

Try making your own sentences with these prompts:

• Write one sentence using the basic pattern.
• Change the sentence into polite or casual style if possible.
• Compare it with the related pattern from the comparison section.

Keep the sentences short at first. Once the form feels natural, add time words, places, reasons, or contrast to make the sentence more realistic.

Learning path for ことがある

Use ことがある as part of your JLPT N4 state, continuity, material, and nominalizing grammar toolkit. Look at the state that continues around ことがある: an unchanged condition, a background action, a sensory impression, a material source, or a nominalized event. Then compare it with patterns that mark time or change.

A good review order is: first make one short sentence with ことがある, then compare it with ながら, and finally add に気がつく or がする to see how the nuance changes.

For practice, write one sentence that uses ことがある in its most literal meaning, one sentence that changes the subject or time expression, and one sentence that contrasts it with one of the related patterns below.

Related grammar to review next

• ながら — reviews a related way to describe state, continuity, or sentence nominalization.
• に気がつく — reviews a related way to describe state, continuity, or sentence nominalization.
• がする — reviews a related way to describe state, continuity, or sentence nominalization.
• 他動詞 & 自動詞 — reviews a related way to describe state, continuity, or sentence nominalization.

Learn ことがある with Hane

If you want to review ことがある together with the related patterns above, Hane helps you practice Japanese in short, focused sessions.

Browse more lessons here:

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