swear的过去式和过去分词分别为swore和sworn。swear作为动词，中文含义有“咒骂”、“诅咒”、“说脏话”、“郑重承诺”、“表示决心要”、“赌咒发誓地说”、“肯定地说”，后可接名词、代词、动词不定式或that从句作宾语，常与介词at连用。
swear的中文释义及用法介绍
swear作为动词，含义为咒骂;诅咒;说脏话;郑重承诺;发誓要;表示决心要;赌咒发誓地说;肯定地说。
1、当作为及物动词时，后面可接名词、代词、动词不定式或that从句作宾语,还可接以形容词充当补足语的复合宾语。
例句：He swore revenge on the man who had killed his father.
他发誓要向那个杀死他父亲的人报仇。
I swear (that) I'll never leave you.
我保证决不离开你。
She made him swear not to tell anyone.
她要他发誓不告诉任何人。
I swear to God I had nothing to do with it.
我可以对天发誓，这跟我一点关系也没有。
Everyone was sworn to secrecy about what had happened.
关于已发生的事，每个人都依照要求起誓不外传。
Alan swore that he would do everything in his power to help us...
艾伦许诺要尽其所能帮助我们。
I swear I've told you all I know...
我发誓我已经把我所知道的全都告诉你了。
2、当作为不及物动词时，后面接介词at，表示诅咒……。
例句：She fell over and swore loudly.
她摔倒了，大骂了一声。
Why did you let him swear at you like that?
你怎么听任他那么骂你呢？
Shut up! How dare you swear at me like that!
住嘴，你竟敢那样咒骂我!
You have no right to swear at me like that!
你无权那样咒骂我!
