他们正秘密策划将如何暗杀总统。用英语怎么说？

他们正秘密策划将如何暗杀总统。

They were plotting how they would assassinate the president.

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

plotting

n. 测绘，标图；v. 密谋( plot的现在分词 )，绘制，把…分成小块，为（文学作品）设计情节；

例句
...a crafty, lying character who enjoys plotting against others...
狡猾奸诈、满嘴谎言而且爱算计人的家伙

how

adv. 怎样，健康状况如何，到何种地步，以任何方式；n. 方法，方式；

例句
He showed how the rich and powerful can abuse their position.
他让我们看到有钱有势的人是如何滥用其地位的。

would

aux. 将，将要，愿意，会，打算，大概；v. (will 的过去式，用于转述)将；

例句
I would love to go abroad this year, perhaps to the South of France.
我今年很想出国，可能是去法国南部。

assassinate

vt. 暗杀，行刺，中伤，诋毁；

例句
The plot to assassinate Martin Luther King had started long before he was actually killed.
刺杀马丁·路德·金的计划在实施前酝酿已久。

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

president

n. 校长，总统，总裁，董事长；

例句
The President described the killings as an abominable crime...
总统称这些血案为令人发指的罪行。