The past perfect tense of the verb ‘ran’ is ‘had run’.
To understand this, let’s break it down: the base form of ‘ran’ is ‘run’. In English, the past perfect tense is used to describe an action that was completed before another action in the past. To form the past perfect tense, we use ‘had’ followed by the past participle of the verb.
In this case, ‘run’ is the past participle form of ‘ran’. So, when we say ‘had run,’ it indicates that the action of running was finished before something else happened in the past. For example, you might say, ‘By the time she arrived, he had run five miles.’ This implies that his running was completed before her arrival.