Structure:
Part A, 后来, Part B
Meaning:
后来 is a time noun, and it can only be used on its own. It describes a certain time period in the past to the present, and it allows the speaker to described what happened in that period.
Examples:
1. 后来 我 去 了 另外 一 家 公司 工作。
Hòu lái wǒ qù le lìnɡ wài yī jiā ɡōnɡ sī ɡōnɡ zuò
Afterwards, I went to work for another company.
然后 is used to describe things happens next
Structure:
Action 1 , 然后 + Action 2
Meaning:
然后 is always used in a sequence. It is often used with 先 (meaning “first”)
Examples:
1. 我们 要 去 吃饭,然后 去 超市。
Wǒ men yào qù chī fàn , rán hòu qù chāo shì
I’m going to eat, then I’ll go to the supermarket.