Began or Begun: Which Is Correct?

Began and begun are both correct forms of begin, but they do different jobs in a sentence. Began is the simple past form, while begun is the past participle and usually appears with helping verbs such as has, have, or had. Since begin is an irregular verb, its forms change rather than simply taking -ed. Once you know the pattern, the difference is easy to remember.

Quick Answer:

Use began when something started in the past:

The meeting began at noon.

Use begun with a helping verb:

The meeting has begun.

The three main forms are begin → began → begun.

Began vs. Begun

Why Is “Begin” an Irregular Verb?

Begin does not follow the regular -ed pattern. Its form changes:

• Present: begin
• Simple past: began
• Past participle: begun

You can see a similar pattern in sing → sang → sung.

When to Use Each

Use began for a completed action in the past:

The class began at nine.

Use begun after has, have, or had:

The class has begun.

The class had begun before we arrived.

Begun can also appear in the passive voice:

The project was begun last year.

Common Mistakes

Using “begun” as the simple past

❌ The show begun at seven.
✅ The show began at seven.

Using “began” after “has”

❌ The show has began.
✅ The show has begun.

Treating “begin” like a regular verb

❌ The meeting begined at noon.
✅ The meeting began at noon.

Pronunciation

Began and begun differ mainly in the vowel sound of the second syllable. Began has a long a sound, while begun has the vowel sound heard in sun. The first syllable is the same in both.

Six Examples

1. The movie began at seven o’clock.
2. She began learning Spanish last year.
3. The rain has begun to fall.
4. We had begun the project before the manager arrived.
5. The students began their exam in silence.
6. Construction has begun on the new bridge.

Easy Memory Trick

Keep the three forms together:

Begin → Began → Begun

Think:

Simple past = began
Helping verb = begun

Mini Quiz

1. Which sentence is correct?
A. The show began at eight.
B. The show begun at eight.
C. The show begined at eight.
D. The show has began at eight.

2. Complete the sentence: “The meeting has □.”
A. began
B. begun
C. begin
D. begined

3. What is the simple past form of “begin”?
A. Begin
B. Began
C. Begun
D. Beginning

4. Which sentence is correct?
A. They had began the work.
B. They had begun the work.

5. Which is the past participle of “begin”?
A. Began
B. Begin
C. Begun
D. Beginning

Answers: 1-A, 2-B, 3-B, 4-B, 5-C

FAQs

Is it “began” or “begun”?

Both are correct. Began is the simple past form, while begun is the past participle.

Is “begun” the past tense of “begin”?

The simple past is began. Begun is the past participle and normally needs a helping verb.

Is it “has began” or “has begun”?

Use has begun because begun is the past participle that follows has.

What are the three forms of “begin”?

The standard forms are begin, began, begun.

Conclusion

Began and begun are both correct, but they are not interchangeable. Use began for a simple past action and begun as the past participle after has, have, or had. Remember begin → began → begun, and you will have the right form for most everyday sentences.

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William Strunk

William Strunk is a respected authority on English grammar, usage, and writing style, known for his influential work The Elements of Style. At EduNexxa, his focus is on clear, concise, and effective English.