i think that we must be talking about it in private 这个句子错了吗?错在哪里?be 后面是n吗

问题描述:

i think that we must be talking about it in private 这个句子错了吗?错在哪里?be 后面是n吗

觉得 Must 后面直接跟动词原形 talk就可以了I think that we must talk about it in private.
如果是一定要加 be 可以加talking.是没错的.