A grammatical tense (present perfect) used in languages like English to indicate experience, continuation, or completed actions linked to the present (expressed as have + past participle).
英語の現在完了は「have＋過去分詞」で表す。
The English present perfect is expressed as 'have + past participle'.
「私はその本を読んだことがある」は経験を表す現在完了の例だ。
'I have read that book' is an example of the present perfect expressing experience.