题目内容：

i took some medicine,some have side effectives.为啥错?把have 改成 having?why

优质解答

句子有两个错,应该是
I took some medicine, some having side effects.
having 是 have 的 ing 形式,在这句子里是形容词
很多ing 形式动词有形容词作用
having side effects = 有副作用的（药物）
我是加拿大人,前英语老师.