What You're Into, What You're Not 好きだ・嫌いだ

好き conjugates exactly like any other な-adjective: 好きです, 好きでした, 好きじゃないです, 好きじゃなかったです. There’s no separate verb form hiding underneath it, and が never becomes を no matter how action-like “like” feels in English.

Modifying a noun directly needs 好きな or 嫌いな, the な that gives な-adjectives their name: 嫌いな食べ物 (disliked food), not 嫌い食べ物. 大好き and 大嫌い push the same words to an extreme, “love” and “really can’t stand,” just by adding 大 (big) on the front.