～ことはない
There is no need to do something
You’ll be able to reassure someone that an action is unnecessary in the present situation.
時間に余裕があるから、そんなに急ぐことはないよ。
jikan ni yoyuu ga aru kara, sonna ni isogu koto wa nai yo.
What do you think this sentence means?
Since we have plenty of time, there is no need to rush like that.
Reassure that an action is not necessary
～ことはない tells someone that an action is unnecessary ("there is no need to...", "you don't have to..."). It is frequently used to reassure or calm someone down.
まだ使えるから、新しいのを買うことはない。
mada tsukaeru kara, atarashii no o kau koto wa nai.
It still works, so there's no need to buy a new one.
簡単なテストだから、緊張することはないよ。
kantan na tesuto da kara, kinchou suru koto wa nai yo.
It's an easy test, so there's no need to be nervous.
Attach ことはない to dictionary form verbs
Attach ことはない directly to the dictionary form of a verb to declare that doing so is unnecessary. Often ends with conversational particles like よ or と思う.
軽い風邪だから、そこまで心配することはないですよ。
karui kaze da kara, soko made shinpai suru koto wa nai desu yo.
It's just a mild cold, so there is no need to worry that much.
～たことがない vs ～ことはない
They look alike but mean different things. Past form + ことがない says you have never done something. Dictionary form + ことはない says there is no need to do it.
～たことがない, have never done
タクシーで行ったことがない。
takushii de itta koto ga nai.
I have never gone by taxi.
Past form + が: experience.
～ことはない, there is no need to
近いから、タクシーで行くことはないよ。
chikai kara, takushii de iku koto wa nai yo.
It's close, so there's no need to go by taxi.
Dictionary form + は: no need.
荷物は少ないから、駅まで迎えに来ることはないよ。
nimotsu wa sukunai kara, eki made mukae ni kuru koto wa nai yo.
I don’t have much luggage, so there’s no need to come pick me up at the station.
一回負けたくらいで、そんなにがっかりすることはないよ。
ikkai maketa kurai de, sonna ni gakkari suru koto wa nai yo.
There’s no need to be so disappointed over losing just once.
全部一人でやることはないよ。みんなで手伝うから。
zenbu hitori de yaru koto wa nai yo. minna de tetsudau kara.
You don’t have to do it all by yourself. We’ll all help.
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