明天是星期五用英语怎么说

"Tomorrow is Friday" 用英语说是 "Tomorrow is Friday"。

来源：
"Friday" 来源于古英语 "Frīġedæġ"，意思是 "Freya's day"，Freya是古北欧神话中的女性神。"Tomorrow" 来源于中世英语 "tō mōrigen"，意思是 "tomorrow morning"。

例句：

"I'll see you tomorrow, it's Friday."（明天见，星期五。）
"I can't wait for tomorrow, it's finally Friday!"（我等不及明天了，终于是星期五了！）
"Tomorrow is Friday, the weekend is almost here!"（明天是星期五了，周末马上就要来了！）