"The past perfect is a verb tense which is used to show that an action took place once or many times before another point in the past.
The past perfect is formed using had + past participle. Questions are indicated by inverting the subject and had. Negatives are made with not.
To learn more about the Past Perfect tense and to practice using this tense, click HERE.
My name is Craig, and I've been teaching English for many years. I initially created this site for my students, but all English learners are welcome. I hope you find something helpful to you. Feel free to leave suggestions or ideas in the Comments section under any entry.