宾语补足语能用第三人称单数么weoftenhearhimsingintheroomsing加s不

Question

宾语补足语能用第三人称单数么
we often hear him sing in the room sing加s不

Answer 1

sing不能加s,因为是 hear sb do sth 听到某人做某事.
但是可以有 hear sb doing sth 听到某人正在做某事.
如：we heard him singing in the room at noon yesterday.
但是 这里 we often hear him sing in the room 也不能用singing ,因为是 often 表经常,而不是正在进行.