The novel is believed to have been translated into Chinese.

问题描述:

The novel is believed to have been translated into Chinese.
为什么不是 to has been translated into...英语太久不学忘得差不多了,尽量讲明白点唤醒我沉睡的记忆.

楼主好,
因为有个to
这里的to是动词不定式,要用动词原形,所以要用have.
比如说,She wants to go shopping.
总不能说,she wants to goes shopping.吧