N5Comparisons & Degree

〜たことがある

Q: Is "Using dictionary form instead of ta-form" correct?

No. The correct form is "Use the ta-form of the verb". For example, "食べることがある" means 'sometimes eat', which is a different meaning from "食べたことがある" (have eaten before).

Q: Is "Confusing たことがある (experience) with ことがある (sometimes happens)" correct?

No. The correct form is "Use the correct context and meaning". For example, "雨が降ったことがある" means 'it has rained before', while "雨が降ることがある" means 'it sometimes rains'.

Q: Is "Using the wrong verb form" correct?

No. The correct form is "Use the correct verb form (e.g. ta-form, dictionary form)". For example, "食べることがある" is incorrect because it uses the dictionary form instead of the ta-form.

Have done before / have the experience of

Definition

Meaning

The grammar pattern "〜たことがある" is used to express that something has happened or been experienced before. It is often used to describe notable or memorable experiences, rather than daily routines. This pattern is commonly used in conversations to share experiences or ask about others' experiences.

Structure

Formation Rules

Form	Pattern	Example
Ta-form	Verb + た + ことがある	食べたことがある
Negative	Verb + た + ことがない	食べたことがない
Question	Verb + た + ことがありますか	食べたことがありますか

Examples

Example Sentences

日本に食べたことがあります。

Nihon ni tabeta koto ga arimasu.

I have been to Japan before.

食べたことがあります (I have eaten before) -> Japan (location)

お寿司を食べたことがありますか。

O-sushi o tabeta koto ga arimasu ka.

Have you eaten sushi before?

食べたことがありますか (Have you eaten before?) -> sushi (food)

富士山に登ったことがあります。

Fujisan ni nobotta koto ga arimasu.

I have climbed Mount Fuji before.

登ったことがあります (I have climbed before) -> Mount Fuji (location)

Context

Usage Notes

This pattern is used in informal conversations to share experiences or ask about others' experiences. It is not typically used in formal writing or in situations where a more precise or technical description is required.

Watch out

Common Mistakes

Using dictionary form instead of ta-form

Use the ta-form of the verb

For example, "食べることがある" means 'sometimes eat', which is a different meaning from "食べたことがある" (have eaten before).

Confusing たことがある (experience) with ことがある (sometimes happens)

Use the correct context and meaning

For example, "雨が降ったことがある" means 'it has rained before', while "雨が降ることがある" means 'it sometimes rains'.

Using the wrong verb form

Use the correct verb form (e.g. ta-form, dictionary form)

For example, "食べることがある" is incorrect because it uses the dictionary form instead of the ta-form.

Strategy

JLPT Exam Tips

When answering questions that use this pattern, make sure to use the correct verb form and context. Pay attention to the nuances of the meaning and use the correct vocabulary to convey the intended message.

In context