在中文中，"弟弟"可以翻译为"younger brother"。"喜欢"可以翻译为"pke"或"enjoy"。"打篮球"可以翻译为"play basketball"。因此，弟弟喜欢打篮球的英文表达可以是"My younger brother pkes to play basketball."或"My younger brother enjoys playing basketball."

"Like"是一个动词，表示"喜欢"的意思。"Enjoy"是一个动词，表示"喜欢并且感到乐趣"的意思。

下面是一些用于表达弟弟喜欢打篮球的英文例句，并附有中文翻译：

My younger brother is really into basketball. He plays it every day after school. (我的弟弟非常喜欢篮球。他每天放学后都会去打。)
My younger brother is a huge basketball fan. He knows all the players and their stats. (我的弟弟是一个非常热爱篮球的人。他知道所有的球员和他们的数据。)
My younger brother loves playing basketball with his friends. They always have a great time together. (我的弟弟喜欢和他的朋友一起打篮球。他们一起玩得总是很开心。)