like是一般动词,当一般动词需要否定时,要用助动词(如:do,does,did,will) 来帮助它否定, 所以本来的肯定句是 " I like you." 否定句是 " I don't like you." don't = do not (I / You/ they/ we 是搭配do; she/ he/ it是搭配does; 过去式时则没有分,都是用did; 未来式都是用will）
