"You jump I jump"算5算係英文??

係英文~不過把2句讀成好似一句咁者
jump本身係一個intransitive verb..後面可以唔寫野的
subject + intransitive verb 就已經係一句
所以 you jump 係一句
i jump 都係一句
但用成好似titanic咁呢~就好似上面幾位所講~差左一個connectives令到2者有關聯喇

You'll jump, I'll jump

You jump I jump 是英文.
有你做乜, 我做乜的意思, 也可以用作要死一齊死的意思.

係英文...不過係口語喇....寫文唔會咁寫
你想要個d係書面語[if you jump,i jump too]
有好多寫法

if you jump ,i also jump too