動画で学ぶ英語：フレーズとレッスン

Boys vs girls: since two hours or for two hours? | English from movies

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11行中1行目 0:00 Hana

I two . is .

一緒に読む一行ずつ聞くだけ

もう一度聞きたい文を選んでください。単語をタップすると意味が表示されます。下線が引かれた単語は、この動画のキーワードです。

Hana I two . is .
Theo is two ?
Hana two . Ask .
Tutor , not .
Rear Window Not for a .
Tutor and .
Twelve O'Clock High For two , sir.
Tutor , a bit .
Alita: Battle Angel But that's .
Theo Oh, you for two . I on my .
Hana For two . So I .

まず押さえたいこと

Boys vs girls: "since two hours" or "for two hours"?

Say "for two hours," not "since two hours." Use for with a length of time, such as two hours, three days or a long time. Use since with the moment something started, such as yesterday, Monday or 3 o'clock.

この動画のキーワード

単語をタップすると意味が表示されます。下線が引かれた単語は、この動画のキーワードです。

表現ごとの解説

Not for a long time. 口調とニュアンス: Relaxed, not exact

Use this short answer when something hasn't happened in a while and you don't want to give an exact number. If you know the exact time, use a number instead, as in "for six months."

“Not for a long time.”

使用作品：Rear Window (1954)
For two hours. 口調とニュアンス: Clear and exact

Use for plus a number to say how long something lasted. It's a natural short answer to "How long?" Don't use since here, because two hours is a length of time, not a starting point.

“For two hours, sir.”

使用作品：Twelve O'Clock High (1949)
But that's just since yesterday. 口調とニュアンス: Strong, a bit annoyed

Use since with a point in time, like yesterday, to say when something started. Here the speaker sounds a little annoyed because the time feels short. Say it calmly if you are only giving information.

“But that's just since yesterday.”

使用作品：Alita: Battle Angel (2019)
I've been waiting since three o'clock. 口調とニュアンス: Exact, a little impatient

Use since with a clock time to show when your waiting started and that it is still going on. It works well when someone is late. With a friend, it can sound like a complaint, so watch your voice.
We've known each other for years. 口調とニュアンス: Warm and general

Use for years when the exact number doesn't matter. It's friendly and common when you introduce an old friend. Don't say "since years."
I haven't seen her since Monday. 口調とニュアンス: Neutral, factual

Use since with a day when you say the last time something happened. It fits negative sentences well. If you want to give the length instead, say "for three days."

よくある間違い

惜しい表現 ~~I waited since two hours.~~

より適切な表現 I waited for two hours.

Two hours is a length of time, so it needs for. Since needs a starting point, like 3 o'clock or yesterday. This is exactly what confuses Theo in the Short.
惜しい表現 ~~I live here since 2020.~~

より適切な表現 I've lived here since 2020.

When an action started in the past and continues now, English usually uses the present perfect (have or has + past participle) with since and for.
惜しい表現 ~~I've been here since a long time.~~

より適切な表現 I've been here for a long time.

A long time is a length of time, not a moment, so use for. The film line "Not for a long time" shows the correct pattern.