以后 (in the future)

• Pinyin: yǐhòu
• Formation: Subj. + 以后 + Verb + Obj. :: / :: Event / Time + 以后 ，Subj. + Verb + Obj.
• Hanzi breakdown: 以 = 人 (person) + dot radical; 后 = 彳 (step) + 幺 (tiny) + 口 (mouth)

Meaning

以后 means 'after' or 'in the future' and is used to refer to events or actions that will happen at some unspecified future time. It can follow a subject to talk about general future plans or follow a time or event reference to mean 'after that.'

以后 has two main uses: placed after a subject or at the beginning of a sentence, it refers to the general future ('from now on' or 'later on'); placed after a specific time or event, it means 'after' that point. Unlike 之后 which is more formal and literary, 以后 is natural in everyday speech. It differs from 然后 which means 'and then' in a sequence. When used alone at the start of a sentence, 以后 often implies a change in behaviour or a resolution for the future. Learners sometimes confuse 以后 with 后来, but 后来 is only used for narrating past events, while 以后 looks forward.

Examples

1. 以后我打算学一门新的语言。 In the future, I plan to learn a new language.
2. 毕业以后他想去上海工作。 After graduating, he wants to go work in Shanghai.
3. 以后有时间我们一起去旅行。 In the future when we have time, let's travel together.

Usage Guide

Context: spoken, written, everyday

Tone: forward-looking

Do Say

• 以后你要多注意身体。
• 下课以后我去图书馆看书。
• 以后遇到问题可以随时问我。

Don't Say

• 后来我要多运动。(后来 is used for narrating past events — for future intentions, use 以后) → 以后我要多运动。
• 以后了我去过北京。(以后 refers to the future — do not use 了 or 过 which mark completed past actions) → 以后我要去北京。

Origin & History

以 originally meant 'to use' or 'by means of' and 后 meant 'behind' or 'after.' Together 以后 literally means 'from this point onward,' evolving into a general temporal marker for future time.

Cultural Context

Generation: All ages

Social background: Universal