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Boys vs girls: what does "I'm down" mean? | English from movies

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12行中1行目 0:00 Theo

? . I'm .

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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。

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Hana Oh, no. my ? .
Theo No. , I'm .
Tutor , .
Caribbean Summer . I'm .
Tutor and .
Be Mine, Valentine . I'm in.
Tutor , .
La La Land .
Theo I'm in. I .
Hana Oh, I my .
Theo , I'm for .

まず押さえたいこと

Boys vs girls: what does "I'm down" mean?

"I'm down" means "Yes, I want to do that." People use it to agree to a plan, usually with friends. It doesn't mean "I'm sad." That meaning needs a different form, such as "I'm feeling down." With friends, use "I'm down" or "I'm in." At work or with people you don't know well, "Sounds good" is the safer choice.

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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

I'm down. 口調とニュアンス: Casual slang, friends only

Use it to say yes to a plan in texts and chats with friends. Don't use it with your manager, a client, or in formal writing.

“Yeah. I'm down.”

使用作品：Caribbean Summer (2022)
I'm in. 口調とニュアンス: Casual and clear

Use it for a quick, easy yes when someone invites a group to do something. It's a little less slangy than "I'm down," but it still sounds relaxed, so keep it for friends and friendly coworkers.

“Okay. I'm in.”

使用作品：Be Mine, Valentine (2022)
Sounds good. 口調とニュアンス: Polite, works anywhere

Use it to accept a plan or suggestion with friends, coworkers, or strangers. It's the safest choice at work. It agrees with the plan but doesn't show much excitement.

“Sounds good.”

使用作品：La La Land (2016)
Count me in. 口調とニュアンス: Friendly and keen

Use it when people are making a list or asking who wants to join. It sounds a little more eager than "I'm in." It isn't the best reply to a one-to-one invitation from your boss.
I'm up for it. 口調とニュアンス: Casual, open to trying

Use it when you're happy to try something, especially an activity that's new or a bit hard. Don't use it when you only mean "that time works for me."
Works for me. 口調とニュアンス: Neutral and practical

Use it to agree to a time, place, or detail. It's fine at work and with friends. It sounds practical, not excited.

よくある間違い

惜しい表現 ~~I'm down. (meaning "I feel sad")~~

より適切な表現 I'm feeling down. / I'm a bit down today.

When "I'm down" is the reply to a plan, people hear yes. To talk about a sad mood, use "feeling down" or add words like "today" or "a bit." This is the same mix-up Hana makes in the Short.
惜しい表現 ~~I'm down to the party.~~

より適切な表現 I'm down for the party. / I'm down to go to the party.

Use "down for" before a noun and "down to" before a verb. "Down to the party" sounds like a direction, not agreement.
惜しい表現 ~~Dear Ms. Lee, I'm down for the meeting on Monday.~~

より適切な表現 Dear Ms. Lee, Monday works for me. / That sounds good.

"I'm down" is slang for friends. In emails at work or with people you don't know well, use a neutral reply such as "Sounds good" or "Works for me."