〜ことはない

〜ことはない is used to say "there's no need to, no reason to do that": 時間は十分あるから、急ぐことはない (we have plenty of time, so there's no need to hurry). This pattern comes up a lot when comforting or reassuring someone who is worried or blaming themselves: 君が謝ることはないよ (you have no reason to apologize).

Connection: verb dictionary form + ことはない. The polite form is ことはありません.

You already know 〜なくてもいい ("you don't have to") — a neutral statement of permission. ことはない is stronger than that: the speaker actively denies the necessity, with an advising tone of "doing that would be pointless, a waste." Also don't mix it up with 〜ないことはない: they look similar, but ないことはない is a double negative meaning "it's not that… not…," which is completely different from "no need to."

Examples

• 時間(じかん)は十分(じゅうぶん)あるから、急(いそ)ぐことはない。

  We have plenty of time, so there's no need to hurry.

• 君(きみ)が謝(あやま)ることはないよ。悪(わる)いのは彼(かれ)だ。

  You have no reason to apologize. He's the one at fault.

• そんなに心配(しんぱい)することはありません。

  There's no need to worry that much.

Related patterns

• 〜ことだ
• 〜ないことはない／ないこともない
• 〜わけにはいかない