What does begun mean?
"Begun" is the past participle of the irregular verb "begin," meaning that something has started or been initiated. Unlike the simple past "began," which can stand alone, "begun" must be paired with an auxiliary verb such as "have," "has," or "had," forming what grammarians call perfect tenses: "the show has begun," "work had already begun before dawn." This auxiliary requirement is the single most important rule governing the word, and confusing "began" with "begun" is among the most frequent verb errors in English. The word itself is ancient, descending directly from Old English "beginnan," and its triple past-form pattern — begin, began, begun — reflects patterns inherited from early Germanic strong verbs. In usage, "begun" is neutral in tone, appearing everywhere from news headlines to casual conversation, and often signals that an event, process, or change is now genuinely underway.
verb (past participle)The past participle of "begin" — used to indicate that something has started or been initiated, typically in perfect constructions such as "has begun" or "had begun."
- (past participle of begin) To have started or come into existence: "The meeting has begun."
- (with 'had') To have been underway at or before a point in the past: "The storm had begun by dawn."
"By the time we arrived, the ceremony had already begun."
"Construction on the new bridge has finally begun after years of delays."
"She realized her speech had begun to wander long before anyone interrupted."
Unlike most irregular verbs, "begin" splits its past forms three ways — began, begun, beginning — making it one of the most commonly misspoken verbs in English.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of begun
"Begun" descends directly from Old English "beginnan," meaning to undertake or start, formed from the prefix "be-" combined with a Germanic root related to opening or undertaking. As a strong verb of Germanic origin, "begin" developed distinct vowel-graded forms across its tenses — begin, began, begun — a pattern inherited from Proto-Germanic ablaut systems rather than invented in English. Cognate forms exist in other Germanic languages, though many have become archaic. The participle "begun" has been stable in English since the Middle English period, retaining its requirement for an auxiliary helper verb.
Related word forms
How begun is actually used
"Begun" never stands alone as a simple past tense — it must follow "have," "has," or "had." Using "begun" where "began" belongs (e.g., "I begun yesterday") is a widespread error even among native speakers. It carries no strong register connotation and appears equally in formal writing and everyday speech.
Easily confused with begun
"Began" is the simple past tense used on its own ("she began to sing"), while "begun" requires an auxiliary verb and appears in perfect tenses ("she has begun to sing").
"Begin" is the base form used for present and future actions ("they will begin soon"), whereas "begun" marks an action already completed or commenced.