今後用英语怎么说

今後的英文：
from now on; in future; for the future

He felt confident in the future.
他对未来充满信心。

Their future looked black.
他们的前途暗淡。

future preterit(e)
过去将来时

Fear not the future; weep not for the past
不要为未来担忧,不要为过去悲泣

Predict the future by reviewing the past.
鉴往知来。