英语".,they were not be taken seriously." 句形不对吗?是不应该去掉"BE"?

问题描述:

英语".,they were not be taken seriously." 句形不对吗?是不应该去掉"BE"?
为什么?换成"BEING"行吗?

可用 to be, being 或 完全 不用
但 意思 不同
they were not to be taken seriously
不必 认真
they were not being taken seriously
they were not taken seriously
他们 没有 被认真 看待