I heard someone sing in the next room last night.语法有误吗?I heard so_英语解答

I heard someone sing in the next room last night.语法有误吗?
I heard someone sing in the next room last nigh.sing要不要改成sang?为什么?
这题是sing没错.不用改成singing.

人气：217 ℃　时间：2019-11-11 13:47:03

解答

hear sb do sth强调听到过某人干什么
hear sb doing sth 强大听到某人正在干什么