like为动词，无论是疑问句还是否定句都要加助动词Do。疑问句 将助动词Do 提前 即为Do I like potatoes？否定句 直接在like前加don't ，即为 I don't like potatoes.望采纳，O(∩_∩)O谢谢
疑问句：Do i like potatoes ?否定句：I don´t like potatoes .
