"被sb告知" 用在句首时，应该用being informed by sb 还是 be informed by sb?

being informed by sb放句首语法上没错，但所跟动词一般是连续性的，表示这个动作正在进行。而inform只是一个相对瞬间的动作，所以不适宜加being
直接informed by sb就好了
或者如果你要表达“被某人通知以后”这个意思时，可以用having been informed by sb，再加主句也可以

两个都可以，用法

"被sb告知" 用在句首时，应该用being informed by sb 还是 be informed by sb?

例句如下：
Li was informed by JACK that he had to pay 20 for the book.
李被杰克告知，他必须为那本书赔付20元。
be informed by这里是做谓语。

LI,being informed by Jack he had to pay 20 for the book then,was playing cards.
李，当时被告知必须为那本书赔付20元的时候，正在打牌。
being informing by这里是做定语。

总结：
being形式要么是分词，现在分词或者过去分词，即，谓语。
要么是做定语，这个时候即非谓语。所以第二例句有was playing cards这个谓语。

直接用Informed by sb, 因为前面没有主语，be 动词不要用了，变成非谓语动词的用法

i was informed by sb1（that） sb2 has....
sb2 has...infoemed by sb1
BEING或者BE很少。我是指在表达被的意思的时候。

As informed by sb,

Being informed by ab,

Informed by sb