The simple past tense of the verb ‘pursue’ is ‘pursued.’
In English, the simple past tense is used to describe actions that were completed in the past. In this case, ‘pursue’ is a regular verb, which means that we form its past tense by adding ‘ed’ to the base form. Therefore, when you want to indicate that someone has chased, followed, or sought after something in the past, you would say they ‘pursued’ it.