動詞不定式意思
動詞不定式(Infinitive)是英語中動詞的一種形式,用來表示目的、願望、意向、能力、允許、建議、命令等意義。動詞不定式由「to」加上動詞原形構成,「to」是不定式符號,後面跟著動詞原形。
動詞不定式有幾種用法:
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作為名詞使用,可以用來表示目的、結果、原因、條件、假設等。例如:
- I want to go shopping. (我想要去逛街。)
- The best way to learn English is to practice. (學習英文最好的方法是練習。)
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作為形容詞使用,可以用來修飾名詞或代詞。例如:
- He has a lot of work to do. (他有很多工作要做。)
- There is nothing to worry about. (沒有什麼好擔心的。)
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作為副詞使用,可以用來修飾整個句子或動詞。例如:
- She decided to leave early. (她決定早點離開。)
- He tried to speak louder so that everyone could hear him. (他試著說得更大聲,以便每個人都聽得到。)
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作為動詞的賓語使用。例如:
- I promise to help you. (我保證會幫你。)
- She agreed to see the movie with us. (她同意和我們一起看電影。)
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作為句子中的補語使用。例如:
- He is too young to go to school. (他太小了,還不能去上學。)
- The problem is easy to solve. (這個問題很容易解決。)
動詞不定式有時可以帶有自己的賓語或補語,形成不定式短語。例如:
- He wants to buy a new car. (他想買一台新車。)
- I need to find a new job. (我需要找一份新工作。)
- She pretended to be asleep. (她裝睡。)
動詞不定式還可以帶有修飾語,如副詞、介詞短語或另一個不定式。例如:
- He decided not to go out tonight. (他決定今晚不出門。)
- I want to quickly finish my work. (我想要快速完成我的工作。)
- She promised to come back early. (她承諾會早點回來。)
動詞不定式有時會被動詞不定式短語修飾,例如:
- He is too tired to even think about it. (他太累了,甚至不想談論它。)
- I'm sorry to have to tell you this. (我必須告訴你這件事,我感到很抱歉。)
動詞不定式可以用來表示將來、現在或過去的動作,取決於它在句子中的作用和語境。例如:
- I'm going to study abroad next year. (我明年要去國外留學。) (將來)
- She is always trying to help others. (她總是試著幫助他人。) (現在)
- I forgot to close the window last night. (我昨晚忘記關窗戶了。) (過去)
動詞不定式還可以用來構成一些固定短語和表達,如「too...to...」、「try to」、「decide to」、「happen to」、「seem to」等。