你可以用英文表达“我怕我以后没钱”的意思是："I'm afraid I won't have any money in the future."

这个表达方式源自英语中的动词“to be afraid”，意思是“害怕”或“担心”。加上“I won't have any money”，即可表达出“我以后没钱”的意思。

下面是一些例句：

I'm afraid I won't have enough money to retire comfortably. (我担心我没有足够的钱退休生活舒适。)
I'm worried that I won't have enough money to pay my rent next month. (我担心下个月我没有足够的钱付我的房租。)
I'm scared that I won't have enough money to support myself when I get older. (我害怕自己年老时没有足够的钱维持生计。)