如题所述
"Have to" 和 "must" 都表示必须做某事,但它们在语气和用法上有些不同:
"Must":
例如:"You must follow the rules."(你必须遵守规则。)
"Must" 通常表达一种强烈的义务或要求,它的语气更强烈。
有时用于表示法律、规则、命令或道义上的义务。
"Must" 通常不与否定形式一起使用,因为它传达了强烈的肯定性。
"Have to":
例如:"You have to submit your report by Friday."(你必须在周五前提交报告。)
"Have to" 也表示义务,但语气相对较弱。
它用于描述一种外部的、客观的义务,而非内在的道义义务。
"Have to" 可以与否定形式一起使用。
在日常用语中,通常会更倾向于使用 "have to",因为它的语气较为中性,而 "must" 通常略显正式。选择使用哪个取决于上下文和表达的强度。
I've got to = I have to = I must
mus 本身只能表达一般现在时和一般将来
have to/Have got to 可以表达
ing形式的必须: having to
过去时:had to
完成时:have had to
等等
I must get in there = I have to get in there
I must get in there tomorrow = I have to get in there tomorrow
I had to get in there yesterday
I have had to get in there