ことがない

expression, i-adjective

have never done; has never occurred

Used after the past tense form of a verb (〜たことがない) to express that something has never happened or someone has never done something.

• 日本にほんに行いったことがない。

  I have never been to Japan.

• 彼かれは遅ち刻こくしたことがない。

  He has never been late.

expression, i-adjective

never happens; there is never a time when

Used with the non-past form of a verb (〜ことがない) to express that something never happens or that there is never an occasion when something occurs.

• 彼かれは約やく束そくを破やぶることがない。

  He never breaks a promise.

• この川かわが氾はん濫らんすることがない。

  This river never floods.