goof

grammar · medium

易错句子My little brother is goof, but everyone likes him.

正确表达My little brother is a goof, but everyone likes him.

goof 作名词时是可数名词，单数形式指“某个人”时前面必须加冠词 a/an。汉语名词没有冠词，学习者容易漏掉，说成“是活宝”时直接省略冠词。补上 a 才能让可数名词单数独立充当表语。

grammar · medium

易错句子He is very goof when he dances.

正确表达He is very goofy when he dances.

goof 是名词，不能受程度副词 very 修饰，也不能作表语描述性质；表示“傻乎乎的、滑稽的”要用形容词 goofy。very 只能修饰形容词或副词，所以这里要换成形容词形式。

grammar · medium

易错句子He's a bit of goof, but he means well.

正确表达He's a bit of a goof, but he means well.

在 a bit of a + 可数名词单数 的结构里，第二个 a 不能省略，因为 goof 是可数名词，需要限定词。汉语说“有点傻”不带冠词，学习者常把 a bit of a 误写成 a bit of；补回这个 a 才符合英语的可数名词规则。