固定搭配，結構為 have + 受詞（something/someone）+ in mind，表示心中已有特定想法或人選，或在做決定時把某事列入考量。常見於問句與建議情境（如 What do you have in mind?）。一般用一般現在或過去式，不常用進行式；受詞通常放在 have 與 in mind 之間。
合併形式範例：
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What do you have in mind for the class trip?
你對校外教學有什麼想法？
其他形式：
have something in mind
指「對某件事／想法已有概念或打算」。可與 any/some/no 等不定代詞搭配（e.g., have anything in mind）。
have someone in mind (for ...)
指「心中有人選」，常接 for + 職位／任務（e.g., for the role/for captain）。
常見錯誤
✗
Keep in mind to go to Taipei this weekend.
✓
I have a trip to Taipei in mind this weekend.
keep in mind 是「記住、提醒」之意，不用來表達「打算／計畫」。要表達打算，可用 have ... in mind、plan to、intend to 等。
✗
I'm having a few ideas in mind for the project.
✓
I have a few ideas in mind for the project.
此處 have 為狀態動詞，通常不用進行式。表達「已有想法」時用一般現在式較自然。
✗
I have a plan on my mind.
✓
I have a plan in mind.
固定搭配為 in mind，不說 on my mind 或 in the mind（語意不同且不自然）。
✗
I have in mind.
✓
I have something in mind.
have ... in mind 需要受詞（something/someone）。若在問句（What do you have in mind?）或關係子句中，語境已指明受詞則可省略明說。