Which verb tense is used in the sentence "I wished I had not taken that wrong turn"?

The sentence "I wished I had not taken that wrong turn" employs the Past Perfect tense. This tense is utilized to describe an action that was completed before another action or point in time in the past. In this case, "had not taken" indicates that the wrong turn was something that happened prior to the speaker's wish or regret about it, which is expressed by "I wished."

The Past Perfect tense effectively highlights the relationship between the desire to change a past event and the event itself, allowing for a clear temporal sequence. It provides a way to articulate the idea that the regret stems from an action that had already been completed before the moment of wishing. This construction is essential for conveying the depth of the speaker's feelings regarding their past decisions.

In contrast, the other verb tenses listed do not fit the context of the sentence. They either describe present actions (like Present Continuous) or future actions (like Future Perfect Continuous), or they define simpler past actions without the nuanced relationship of sequence that the Past Perfect provides.