Start vs Begin — What’s the Difference?

Q: Is "to begin with" correct, or should I say "to start with"?

Both 'to begin with' and 'to start with' are used in English and both mean 'firstly.' However, 'to begin with' is more formal and widely accepted in writing. 'To start with' is more informal and common in spoken English. In formal essays or speeches, 'to begin with' is the safer and more polished choice.

Q: Is start or begin more common in everyday English?

Start is more common in everyday spoken English and is the natural, informal choice in conversation. Begin is found more often in formal writing, literature, and official contexts. If you are not sure which to use in a sentence where both are possible, start will usually sound more natural in speech, while begin sounds more appropriate in formal writing.

Q: Can start and begin both be followed by an -ing form?

Yes. Both verbs can be followed by a gerund (-ing form) or a to-infinitive with very little difference in meaning. 'She started talking' and 'she started to talk' are both correct. 'She began talking' and 'she began to talk' are also both correct. The meaning is the same; only the formality level differs.

Q: Can I say "the rain started" and "the rain began"?

Yes, both are correct. 'It started to rain,' 'it started raining,' 'it began to rain,' and 'it began raining' are all natural English sentences. This is a case where start and begin are fully interchangeable. In spoken English, 'it started raining' is slightly more common; in written English, 'it began to rain' is often preferred for its literary quality.

Vocabulary A2 5 min read Updated 13 June 2026

Quick Answer

Start and begin are near synonyms meaning “to do the first part of something,” but start is more informal and is the only correct choice for machines, engines, and journeys (the car started, we started the trip), while begin is more formal or literary and is preferred in writing, speeches, and set phrases like to begin with.

Start and begin are two of the most common verbs in English, and in many sentences either word is perfectly correct. However, there are specific situations where only one of them sounds natural. Knowing these patterns will help you write more confidently and avoid sounding unnatural.

Comparison at a Glance

Word	Meaning	Example	Common Use
start	To begin doing something; to set a machine or process in motion	She started* the engine.*	Informal speech, machines, journeys, new activities
begin	To do the first part of something; to come into existence	The meeting began* at nine.*	Formal writing, speeches, literary texts, fixed phrases

Using “Start”

Start is the everyday, informal word. It is the natural choice in everyday conversation and in any context involving machines, engines, journeys, or new undertakings. You can use start followed by a noun, a gerund (-ing form), or an infinitive.

She started the car and drove away.

What time does the film start?

He started learning Spanish last year.

We started our journey at dawn.

The company started a new project in January.

Key Patterns

start + noun: start the engine, start a business
start + -ing: start working, start talking
start + to + infinitive: start to rain, start to feel tired

Start: Machines and Engines

When talking about making a machine, engine, or device begin operating, you must use start. Using begin in this context sounds unnatural or incorrect to native speakers.

Can you start the generator, please?

The engine won’t start in cold weather.

Can you begin the generator?

Start: Journeys and New Ventures

Start is also preferred when you are talking about setting off on a journey or launching a new business, project, or activity from scratch.

We started our road trip on Monday.

She started her own bakery at the age of 25.

He started a new job last week.

Using “Begin”

Begin is the more formal and literary word. It is the better choice in formal writing, academic texts, official speeches, and fixed phrases. Like start, it can be followed by a noun, a gerund (-ing form), or an infinitive.

The ceremony will begin at noon.

He began his speech with a quote.

She began to understand the problem.

The story begins in a small village in France.

Let us begin with a short review of last week’s lesson.

Key Patterns

begin + noun: begin a chapter, begin the lesson
begin + -ing: begin talking, begin writing
begin + to + infinitive: begin to realise, begin to improve

Fixed Phrases with “Begin”

Several common phrases are fixed with begin and cannot use start:

to begin with — meaning “firstly” or “at first”: To begin with, let’s look at the main problem.
begin at the beginning — a literary or formal expression
charity begins at home — a fixed proverb

When Either Word Works

In the majority of everyday sentences, start and begin are interchangeable. The meaning does not change, though the register (level of formality) does. In informal conversation, start is more natural; in formal writing, begin is preferred.

I started reading the book last night. (informal)

I began reading the book last night. (slightly more formal)

The class starts at 8 a.m. (common in speech)

The class begins at 8 a.m. (also common; slightly more formal)

Common Errors

The car began but made a strange noise.

The car started but made a strange noise. (machines → always use start)

To start with, I would like to thank everyone.

To begin with, I would like to thank everyone. (fixed phrase → use begin)

She began a new business from nothing.

She started a new business from nothing. (founding/launching → prefer start)

Memory Tip

Start goes with Switches, Sparks, and Setting off. Anything that needs a key, a button, or a departure point uses start. Begin is for books, speeches, and formal moments — think of an orchestra conductor raising their baton and saying “We begin.”

Frequently Asked Questions

What is the difference between start and begin?

Start and begin are near synonyms that both mean to do the first part of something. The main difference is register and specific usage: start is more informal and is the only correct choice for machines, engines, and journeys (start the car, start a trip). Begin is more formal and literary, and is preferred in formal writing, speeches, and set phrases like "to begin with." In most everyday sentences, either word is acceptable.

Can I use "begin" with machines and engines?

No. When talking about making a machine or engine start operating, you must use start, not begin. "Start the engine," "the generator won't start," and "start the computer" are all correct. Saying "begin the engine" or "the generator won't begin" sounds unnatural and is incorrect in standard English. This is one of the key situations where the two verbs are not interchangeable.

Is "to begin with" correct, or should I say "to start with"?

Both "to begin with" and "to start with" are used in English, and both mean "firstly" or "as the first point." However, "to begin with" is more formal and widely accepted in writing. "To start with" is more informal and common in spoken English. In formal essays, presentations, or speeches, "to begin with" is the safer and more polished choice.

Is start or begin more common in everyday English?

Start is more common in everyday spoken English. It is the natural, informal choice in conversation. Begin is found more often in formal writing, literature, and official contexts. If you are not sure which to use in a sentence where both are possible, start will usually sound more natural in speech, while begin will sound more appropriate in a formal essay or official announcement.

Can start and begin both be followed by an -ing form?

Yes. Both verbs can be followed by a gerund (-ing form) or by a to-infinitive with very little difference in meaning. For example: She started talking / She started to talk — both are correct. She began talking / She began to talk — both are also correct. The only slight preference is that the -ing form after begin can sound slightly unusual in some contexts, but it is grammatically correct.

Which word is better when talking about starting a business or project?

When talking about founding, launching, or establishing something new — like a business, a company, or a project — start is the stronger and more natural choice. "She started a business," "they started a project," and "he started a charity" all sound natural. "She began a business" is grammatically possible but sounds less idiomatic. The idea of creating something new from nothing connects strongly to start.

What is the past tense of start and begin?

Start is a regular verb: past simple is started, past participle is started. Begin is an irregular verb: past simple is began, past participle is begun. Examples: She started the lesson (regular). The lesson began at nine (irregular). The lesson has already begun (past participle). A common mistake is to say "the lesson has began" — the correct past participle is "begun," not "began."

Is "begin" more formal than "start"?

Yes. Begin is considered the more formal and literary of the two words. You will find begin more often in formal written English — academic papers, official announcements, literature, and formal speeches. Start is the everyday word used in informal conversation, casual writing, and practical instructions. In formal writing, choosing begin over start signals a higher register and sounds more professional.

Can I say "the rain started" and "the rain began"?

Yes, both are correct. "It started to rain," "it started raining," "it began to rain," and "it began raining" are all natural English sentences. This is a case where start and begin are fully interchangeable. In spoken English, "it started raining" is slightly more common; in written English, "it began to rain" is often preferred for its more literary quality.

Are there any proverbs or fixed expressions that use "start"?

Yes. Common fixed expressions with start include: start from scratch (to begin with nothing), get off to a good/bad start (to begin well or badly), start afresh (to begin again from the beginning), and a head start (an advantage at the beginning). These are all fixed phrases where start cannot be replaced by begin. Compare with begin's fixed phrase: "charity begins at home" and "to begin with."