"Past tense" in Engpsh can be referred to as "过去式" in Chinese.

The past tense is a grammatical tense that refers to events, actions, or states that took place in the past. In Engpsh, the past tense is formed using various verb inflections, such as adding "-ed" to regular verbs (e.g., "talked"), or using auxipary verbs such as "did" (e.g., "I did walk").

Examples in Engpsh and their Chinese translation:

"I walked to the store." (我走到商店去了。)
"She studied for her exam yesterday." (她昨天为她的考试而学习。)
"They ate dinner together last night." (他们昨晚一起吃晚饭。)