Explanation
Expresses the experience of having done something in the past.
Formation
Verb-た-form + ことがある
Detailed explanation
The ～たことがある grammar point is used to express the experience of having done an action in the past. It indicates that the speaker has had the experience of doing something at least once before. It is formed by adding ことがある to the た-form of the verb.
Examples
日本に行ったことがあります。
Nihon ni itta koto ga arimasu.
I have been to Japan before.
寿司を食べたことがありますか？
Sushi wo tabeta koto ga arimasu ka?
Have you ever eaten sushi before?
彼はマラソンを走ったことがあります。
Kare wa marason wo hashitta koto ga arimasu.
He has experienced running a marathon.
私はスカイダイビングをしたことがありません。
Watashi wa sukaidaibingu wo shita koto ga arimasen.
I have never experienced skydiving.
Practice
Grammar content sourced from hanabira.org.