be

be — verb

1. to give someone's or something's name, kind, quality, owner, price, or value

1.verbA1
Definition

to give someone's or something's name, kind, quality, owner, price, or value

Example

Noa is our new science teacher this year.

be + noun phrase for identity or job

The soup is too hot for the children now.

be + adjective for temporary state

Common collocations
  • be a teacher
  • be happy
  • be mine
  • be sixty dollars
  • be the hardest part
Synonyms
  • mean

    fits only when be shows meaning or symbol, not general identity

  • equal

    fits only for numbers, prices, and exact matching value

  • serve as

    fits when something has a role or function rather than simple identity

Grammar Patterns

be + noun phrase

be + adjective

be + possessive

be + number/price

be + -ing clause

Usage Note

This is the broad linking sense of be. Use it for names, jobs, qualities, prices, ownership, and similar descriptions; use sense 2 when the main idea is location or time, and sense 3 when the main idea is material.

Common Mistakes

My father is work in a bank.
My father works in a bank.' / 'My father is working in a bank.
do not put ordinary base verbs directly after 'be'.

2. to show where someone or something is, where they come from, or when an event ha

2.verbintransitiveA1
Definition

to show where someone or something is, where they come from, or when an event happens

Example

Our car is in the school parking lot.

be + prepositional phrase for location

Mei is from Tainan, but her parents are from Hualien.

be from + place

Common collocations
  • be at home
  • be in the car
  • be from Taipei
  • be on Friday
  • be at the wedding
Synonyms
  • lie

    used mainly when something is in a flat position

  • stand

    used mainly when something is upright

  • come from

    matches only the origin part of this sense

Antonyms
  • leave

    describes going away from a place instead of being there

Grammar Patterns

be + adverb/prepositional phrase

be from + place

be at + event

be + time expression

Usage Note

The verb is usually followed by a place phrase such as 'in the bag' or 'at school'. For origin, English normally uses 'be from'.

Common Mistakes

My keys are at the table.
My keys are on the table.
after 'be', choose the preposition that matches the exact position.

3. to show the material or parts that make something up

3.verbA1
Definition

to show the material or parts that make something up

Example

The ring is made of silver from my grandfather's shop.

be made of + material

Most school desks here are made of wood and steel.

Common collocations
  • be made of wood
  • be made from milk
  • be plastic
  • be stone
Synonyms
  • consist of

    works well for listed parts or ingredients, not for simple material labels

  • be made from

    closer when the source material is changed by a process

Grammar Patterns

be made of + material

be made from + material

be + material

Usage Note

Common with 'made of' when the material stays recognizable, and with 'made from' when the original material changes form. Distinguish from sense 1, where be gives a general description rather than naming the material.

Common Mistakes

The table is from wood.
The table is made of wood.
use 'made of' to name the material of an object.

4. to show that a rule, an order, or a person in charge says someone must or must n

4.verbB2
Definition

to show that a rule, an order, or a person in charge says someone must or must not do something

Example

Students are to leave their phones in the blue box.

be to + infinitive for official instructions

The driver was not to stop near the bridge at night.

negative order: be not to + infinitive

Common collocations
  • be to leave
  • be not to touch
  • what are we to do
  • be to show ID
Synonyms
  • must

    the direct everyday way to express obligation

  • have to

    common in speech for outside rules or necessity

  • be supposed to

    often softer and less official than this pattern

Antonyms
  • may

    gives permission instead of an order

Grammar Patterns

be to + infinitive

be not to + infinitive

what am/is/are + subject + to + infinitive?

Usage Note

Common in rules, instructions, and firm statements from parents, teachers, officials, or written notices. Unlike sense 5, this sense gives an obligation rather than just announcing a plan.

Common Mistakes

You are not touch the wires.
You are not to touch the wires.
this pattern needs 'to' before the infinitive.

5. to announce or report an official plan or expected future event

5.verbB2
Definition

to announce or report an official plan or expected future event

Example

The mayor is to open the new library on Monday.

announcement: be to + infinitive

Three rescue boats are to arrive before sunrise.

Common collocations
  • be to open
  • be to arrive
  • be to speak
  • be to play
Synonyms
  • be going to

    neutral everyday future form, less formal than this pattern

  • be due to

    often used when a time is expected or scheduled

  • be scheduled to

    more explicit about timetables and formal arrangements

Grammar Patterns

be to + infinitive for scheduled future

was/were to + infinitive

Usage Note

This pattern is common in news reports, public notices, and formal schedules. Distinguish it from sense 4: here the speaker reports an arrangement, not an order.

Common Mistakes

The team is to plays on Friday.
The team is to play on Friday.
use the base verb after 'to'.

6. to talk about a possible future situation, especially one you are only imagining

6.verbC1
Definition

to talk about a possible future situation, especially one you are only imagining

Example

If the old dam were to break, the lower farms would flood.

if + were to for hypothetical future

If I were to refuse, Aunt Helen would ask many questions.

Common collocations
  • if I were to
  • if the bridge were to collapse
  • were she to refuse
Synonyms
  • if ... should

    another formal way to mention a possible future case

  • might

    shows possibility, but it does not create the same if-clause pattern

Grammar Patterns

if + subject + were to + infinitive

were + subject + to + infinitive

Usage Note

Most common in careful or formal writing, especially with 'if ... were to'. It usually suggests a future case that is imagined rather than expected.

Common Mistakes

If I was to refuse, they are annoyed.
If I were to refuse, they would be annoyed.
this pattern usually takes 'were to' and a result clause with 'would'.

7. to say that something can be seen, found, heard, or done

7.verbC1
Definition

to say that something can be seen, found, heard, or done

Example

Fresh bread is to be found at the market after six.

formal be to be found

The full report is to be seen on the hospital website.

Common collocations
  • be to be found
  • be to be seen
  • be to be heard
Synonyms
  • can

    the normal everyday way to express possibility

  • may

    a slightly more formal possibility word, but not in this fixed pattern

Antonyms
  • cannot

    shows that something is impossible instead of possible

Grammar Patterns

be to be + past participle

Usage Note

Most common in formal writing and museum, travel, or report style. Unlike sense 5, it means 'can' rather than 'will'.

Common Mistakes

The answer is to find on page nine.
The answer is to be found on page nine.
this pattern usually uses a passive infinitive like 'be found' or 'be seen'.

8. to have real existence, or in formal style to remain alive

8.verbintransitiveC1
Definition

to have real existence, or in formal style to remain alive

Example

Two of the camp's oldest trees were no more after the storm.

formal expression: be no more

After the fire, the old pier was no more by morning.

expression: be no more

Common collocations
  • should never be
  • cease to be
  • be no more
Synonyms
  • exist

    the normal everyday verb for having reality

  • live

    fits when the meaning is 'remain alive'

  • remain

    sometimes overlaps when something continues to exist

Antonyms
  • die

    the opposite when a living thing stops being alive

  • disappear

    the opposite when something no longer exists or is present

Grammar Patterns

should never be

cease to be

be no more

Usage Note

This use is limited and formal. In ordinary speech, people usually say 'exist', 'be alive', 'die', or 'disappear' instead.

Common Mistakes

Dinosaurs are now.
Dinosaurs no longer exist.' / 'Dinosaurs are no more.
this existence use of 'be' is restricted and not the normal everyday choice.
Idioms

Used to refer to a previous name or status of someone or something.

Anna Smith, as was, now goes by her married name.

The country, that was, no longer exists on the map.

The most important or essential part of something.

Winning the championship is not the be-all and end-all of his career.

For many, money is the be-all and end-all of happiness.

Used to say that someone or something prevented something from happening.

If it weren't for the rain, we would have gone hiking.

If it wasn't for your help, I would have failed the exam.

Used to accept a negative situation that cannot be changed.

The project failed, but it is what it is.

We lost the game, but it is what it is.

To stop bothering or interfering with someone or something.

Leave the cat be; it's sleeping peacefully.

Let the issue be for now; we can discuss it later.

-to-be

idiom

This suffix describes someone who will become something in the future.

Mia congratulated her sister, the bride-to-be, at the party.

The doctor gave advice to all the mothers-to-be in the class.

be — auxiliary verb

Word family

Synonym discussion

Sense: verb/1

'Be' is the basic linking verb. It simply states a fact, identity, or condition: 'Mina is tired.' 'Seem' is weaker because it reports appearance or impression, not certainty: 'Mina seems tired' may only be your guess. 'Become' adds change over time: 'Mina became tired after the trip' means the state started later. 'Remain' adds no change: 'Mina remained tired' means the state continued. All four can stand before adjectives, and some can stand before noun phrases, but only 'be' works as the neutral default in almost every situation. Compare: 'Ken is a doctor', 'Ken seems calm', 'Ken became a doctor', and 'Ken remained calm after the crash.'

Common collocations

Adverbs

  • still be
  • already be
  • never be

Phrases

  • be made of
  • be no more
  • cease to be

Prepositions

  • be at
  • be for
  • be from
  • be in
  • be to

Etymology

Proto-Indo-EuropeanProto-GermanicOld EnglishMiddle EnglishEnglish

Modern English 'be' is a mixed verb built from more than one very old source. Old English used forms from verbs like 'beon' and 'wesan', and later English kept that blend instead of leveling it into one regular pattern. That is why the verb still has very different forms such as 'am', 'is', 'are', 'was', and 'were'. One ancient root originally meant 'grow' or 'come into being', while another meant simply 'exist'. Those old stems merged early in the history of English and produced the unusual family of forms we use today.