How to Use Passed vs Past | Merriam-Webster
www.merriam-webster.com › words-at-play › keeping-upWhat to Know. Passed is only used as a form of the verb "pass," whereas past functions as a noun (the past), adjective (past times), preposition (just past), and adverb (running past). "Past" will always have the same form regardless of the sentence construction or tense ("I went past " vs "I will go past"), while "passed" will be interchanged with other tenses of "pass," such as "passing" and "passes."