三天以后用英语怎么说

如果是现在说三天以后 那就是in three days
是过去的就该用three days later

看什么语境了哦``

比如,他三天以后回来`

He'll come back (in three days)``

三天后，他们在车站见面了`

(Three days afterward) they met at the station.

(After three days)这个表达是比较常见的三天后``

He was found (three days later) on the edge of death in his room. 也是三天后哦``

in three days(用于将来时)
after three days(用于过去时)

三天以前是before three days或three days ago

three das ago过去时
in three das三天以内/前，将来时

After three days 三天以后

Before three days 三天以前