swear可用作及物动词,也可用作不及物动词。用作及物动词时,后接名词、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。可用于被动结构。
swear表示“骂人”时,其后须与介词at连用。
swear的过去式是swore,过去分词是sworn。
例句：
He has been brought up not to swear in front of women.
Many people swear by vitamin C's ability to ward off colds.
许多人深信维生素C能预防感冒。
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。
It is totally unacceptable for children to swear.
孩子说脏话是完全不能容忍的。
It's wrong to swear and shout.
破口大骂是不对的.
I could kill you! I swear I could!
我想杀了你!我发誓我真想杀了你!
