單字庫

could

/ˈkʊd/KK

練發音
情態動詞
國小
難度 短、單義、常用
情態動詞
can 的過去式形式
變化形
第三人稱單數

coulds

過去式

coulded

過去分詞

coulded

現在分詞

coulding

1.
能夠;會
極常用

用來表示過去具備某種一般能力,或當時懂得做某事。

用法:could 後面接原形動詞,不加 to。否定為 could not 或縮寫 couldn't。

could swim
could speak English
could hear
could see
could understand

I could not hear the teacher because the room was too loud.

我聽不見老師,因為房間裡太大聲了。

When my grandfather was young, he could ride a bike to school every day.

我祖父年輕時,每天都能騎腳踏車去上學。

還有 4 個進階的意思(國小之後才會學到)
2.
可以……嗎;能不能……
極常用

用於禮貌地請求別人做事,或詢問是否被允許做某事。語氣通常比 can 更委婉。

用法:Could you+原形動詞?用來請人幫忙。Could I+原形動詞?用來詢問許可。這裡的 could 不表示過去時間。

Could you please ...?
Could you help me?
Could I borrow ...?
Could I have ...?
Could you tell me ...?

Could you save a seat for me in the library?

你可以幫我在圖書館留個位子嗎?

Could I use your phone for a few minutes?

我可以用你的手機幾分鐘嗎?

3.
可能;有可能
極常用

用來表示某件事有發生的可能,但說話者不確定。

用法:could+原形動詞可表示現在或未來的可能性。could be 後面可接名詞、形容詞或地點等補語。

could rain
could be late
could happen
could cause problems
could mean

The train could be late because of the heavy rain.

火車可能會因為大雨而晚到。

If we leave later, the trip could take less than an hour.

如果我們晚一點出發,這趟路程可能不到一個小時。

4.
本來可以;就能夠
極常用

用於假設或條件句,表示在某個想像的條件下可能做到的事、可能出現的結果或可行的選擇。

用法:常見句型為 If+過去式,主詞+could+原形動詞。也可用 could have+過去分詞談論過去未實現的可能。

could afford
could join
could make a difference
could work
could have gone

If I had a scooter, I could get to school faster.

如果我有一台機車,我就能更快到學校。

With a little more time, we could finish our work today.

如果再多一點時間,我們今天就能完成工作。

5.
可以考慮……;不妨……
常用

用來提出建議、選項或可採取的做法,語氣較不強硬。

用法:could+原形動詞用於建議時,通常不表示能力或過去時間。若要加強建議,可說 You could try ...。

could start with
could always
could try
could ask
could take

You could take the train when the roads are busy.

路上車很多時,你可以搭火車。

For the class party, we could order pizza and fruit tea.

班級聚會時,我們可以訂披薩和水果茶。

常見錯誤

I could to help you.

I could help you.

Could you can help me?

Could you help me?

Yesterday, I could meet my teacher at the station.

Yesterday, I was able to meet my teacher at the station.

Could you to lend me your pen?

Could you lend me your pen?

相關字詞
can 同源詞
may 近義
might 近義
be able to 近義
學習提示

・could 的核心意思會隨語境改變:它可談過去能力、禮貌請求、可能性、假設結果或建議。

・Could you ...? 是請求對方幫忙,不是詢問對方是否「有能力」幫忙。

・否定式 couldn't 可表示「不能」、「不會」或「不可能」,實際意思要看上下文。

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