Conjugation of "Begin" — All Forms, Examples, and Usage
To start something new; to commence an action, process, or state.
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All 12 Tenses of "Begin"
Quick reference table — every tense form of "begin" with the first-person example and a link to the grammar guide for that tense.
| Tense | Example (I) | Quick rule |
|---|---|---|
| Simple Present | I begin |
Used for habits, facts, routines, and permanent situations. Full rule → |
| Simple Past | I began |
Used for completed actions at a specific time in the past. Full rule → |
| Simple Future | I will begin |
Used for predictions, decisions made at the moment, and promises. Full rule → |
| Present Continuous | I am beginning |
Used for actions happening right now or temporary situations. Full rule → |
| Past Continuous | I was beginning |
Used for actions in progress at a specific moment in the past. Full rule → |
| Future Continuous | I will be beginning |
Used for actions that will be in progress at a specific future time. Full rule → |
| Present Perfect | I have begun |
Used for past actions with present relevance, life experiences, or unfinished situations. Full rule → |
| Past Perfect | I had begun |
Used for an action that was completed before another past action. Full rule → |
| Future Perfect | I will have begun |
Used for an action that will be completed before a specific future time. Full rule → |
| Present Perfect Continuous | I have been beginning |
Used for actions that started in the past and continue now, with focus on duration. Full rule → |
| Past Perfect Continuous | I had been beginning |
Used for ongoing actions in the past that continued up to another past moment. Full rule → |
| Future Perfect Continuous | I will have been beginning |
Used for actions that will have been ongoing up until a specific future time. Full rule → |
Past Tense of "Begin" — Began
The past simple of "begin" is "began". Use it for completed actions at a specific past time. Because "begin" is irregular, "began" is not formed by adding -ed — you have to memorize this form. See our simple past tense guide for a deeper explanation of the simple past.
- She began her new job in January. A1
Past Participle of "Begin" — Begun
The past participle of "begin" is "begun". Use it after "have/has/had" for the perfect tenses ("I have begun"), and after "be" for passive constructions ("It was begun"). Because "begin" is irregular, "begun" is not the same as the past simple — students often confuse the two forms.
Is "Begin" Regular or Irregular?
"Begin" is an irregular English verb. Its principal parts are: base form "begin", past simple "began", and past participle "begun". The 3rd-person singular present is "begins" and the present participle/gerund is "beginning". Conjugation pattern: ablaut: begin-began-begun (vowel change pattern).
Conjugation pattern: ablaut: begin-began-begun (vowel change pattern)
How to Pronounce "Begin" and Its Forms
Begin: /bɪˈɡɪn/ — Stress pattern: oO
Stress on second syllable: be-GIN; the 'i' in both syllables is short as in 'sit' and 'is'.
Syllable breakdown: be · gin
How to Use "Begin" — Common Grammar Patterns
Can use 'begin + noun' ('begin work') or 'begin + to-infinitive' ('begin to understand'); 'begin + gerund' is less common.
S + begin + nounS + begin + to-infinitiveS + begin + gerund (less common)
Example Sentences with "Begin" in Different Tenses
- Simple Present: When you begin learning English, patience and practice are essential. B1
- Simple Past: She began her new job in January. A1
Common Collocations with "Begin"
- begin with
- begin to
- begin again
When to Use "Begin" vs Similar Verbs
Smart synonyms — when to use each one
- start — most common conversational synonym; less formal than 'commence'
- commence — formal and official register; used in ceremonies, legal,
Antonyms: end, finish
Common Mistakes with "Begin"
-
Wrong: She begin often.
Correct: She begins often.
Add "s" to the verb when the subject is third-person singular (he/she/it).
Origin and Etymology of "Begin"
From Old English 'beginnan'; possibly from 'gin' (related to 'begin') meaning to open or start.
Other Forms of "Begin"
- Noun: beginning
Conjugation Tables for "Begin"
Negative Forms
- Simple present: I do not begin · He does not begin
- Simple past: I did not begin · She did not begin
- Present perfect: I have not begun · He has not begun
Question Forms
- Simple present: Do you begin? · Does he begin?
- Simple past: Did you begin?
- Present perfect: Have you begun?
Passive Voice (where applicable)
- Simple present passive: It is begun
- Simple past passive: It was begun
- Present perfect passive: It has been begun
Frequently Asked Questions About "Begin"
- Is "begin" regular or irregular?
- "begin" is an irregular verb. Its past simple is "began" and past participle is "begun". You must memorize these forms.
- What is the past tense of "begin"?
- The simple past of "begin" is "began".
- What's the difference between the past simple and past participle of "begin"?
- The past simple is "began" and the past participle is "begun". Use past simple for completed past actions ("I began yesterday"). Use past participle with have/has ("I have begun").