The Mandarin Chinese yǐhòu 以後/以后 means after, and is used in this sentence pattern:
After an action is completed, then another action occurs.
Using Yi Hou - After
Here are some examples of this sentence pattern:
Tā xià kè yǐhòu, yào huí jiā chī fān.
After class, he will return home to eat. (literally – He class is over after, going to return home eat a meal.)
他下課以後要回家吃飯｡
他下课以后要回家吃饭｡
Tāmen jiéhūn yǐhòu yào dào Měiguó qù zhù.
After they get married, they will go to live in America. (literally – They marry after, going to to America go live.)
他們結婚以後要到美國去住｡
他们结婚以后要到美国去住｡
Notes About Yi Hou - After
This sentence pattern has two clauses, and yǐhòu is always placed after the first clause. The clause containing yǐhòu must be the first clause. This is in contrast to English, where the two clauses can be reversed.
Yǐhòu can also mean afterwords, in which case it is used in a single-clause sentence, and can be placed either before or after the subject:
Tā yǐhòu huì qù Měiguó.
他以後會去美國｡
他以后会去美国｡
He will go to America afterwards.
or
Yǐhòu tā huì qù Měiguó.
以後他會去美國｡
以后他会去美国｡
Afterwards, he will go to America.
