begun

begun — verb

1. the form of the irregular verb 'begin' that is used together with 'have', 'has',

1.動詞A2
釋義

the form of the irregular verb 'begin' that is used together with 'have', 'has', or 'had' to talk about actions that started in the past and may still be happening or have just finished; also used with 'be' to form passive sentences about when something was started.

例句

Imran has begun his new job at the hospital in Taipei.

present perfect: has + begun

By the time Aylin arrived, the film had already begun.

past perfect: had + begun

文法句型

have/has + begun

had + begun

was/were + begun (passive)

用法筆記

Frequently confused with 'began' (the simple past form). 'Began' stands alone as a past-tense verb; 'begun' must be paired with an auxiliary verb ('have', 'has', 'had', or 'be'). This is the only sense of 'begun' — it functions solely as a past participle and does not appear as a main verb on its own.

常見錯誤

❌I begun my homework yesterday.
✅I began my homework yesterday.
💡'began' is the simple past form and does not need an auxiliary verb.
❌She has began her new class this week.
✅She has begun her new class this week.
💡Use 'begun' (past participle), not 'began' (simple past), after 'has', 'have', or 'had'.
❌The project had began before the deadline.
✅The project had begun before the deadline.
💡After 'had' in the past perfect, always use the past participle.