Sentence examples for had decided from inspiring English sources

"had decided" is a correct and usable part of a sentence in written English.
It is the past perfect tense form of the verb "decide" and is used to indicate that the decision was made before a specific time in the past. For example: - I had decided to go on a trip before I received the email about the conference. - By the time he arrived, they had already decided on a plan of action. - The students had decided to protest the school's decision before the administration changed their minds.