How do you use "be" in a sentence?

I want to be a doctor when I grow up. The weather has been lovely all week. There will be a meeting at three o'clock.

be

Vocabulary Word BritishAmerican ★★★★★ Very Common Neutral

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Significado: To exist or live; to have a particular quality, state, or identity

是，存在，成为

ser, estar, existir

である、いる、存在する

이다, 있다, 존재하다

The verb 'be' is the most fundamental verb in English, used to describe existence, identity, and states of being. It functions as a linking verb connecting subjects to descriptions, and as an auxiliary verb in continuous tenses and passive constructions. Its conjugation is highly irregular (am, is, are, was, were, been, being).

「be」是英语中最基本的动词，用于描述存在、身份和状态。它作为连系动词将主语与描述联系起来，也作为助动词用于进行时态和被动语态。它的变化形式极不规则（am, is, are, was, were, been, being）。

El verbo «be» es el más fundamental en inglés, usado para describir existencia, identidad y estados. Funciona como verbo copulativo conectando sujetos con descripciones, y como verbo auxiliar en tiempos continuos y construcciones pasivas. Su conjugación es muy irregular (am, is, are, was, were, been, being).

「be」は英語で最も基本的な動詞で、存在、アイデンティティ、状態を表すのに使われます。主語と説明をつなぐ連結動詞として、また進行形や受動態の助動詞として機能します。活用は非常に不規則です（am, is, are, was, were, been, being）。

동사 'be'는 영어에서 가장 기본적인 동사로, 존재, 정체성, 상태를 나타내는 데 사용됩니다. 주어와 설명을 연결하는 연결 동사로 기능하며, 진행 시제와 수동태 구문에서 조동사로도 사용됩니다. 활용이 매우 불규칙적입니다(am, is, are, was, were, been, being).

Ejemplos

I want to be a doctor when I grow up.
我长大后想成为一名医生。
Quiero ser médico cuando sea mayor.
大きくなったら医者になりたい。
나는 커서 의사가 되고 싶다.
The weather has been lovely all week.
这一周天气一直很好。
El tiempo ha sido encantador toda la semana.
今週ずっと天気が良かった。
이번 주 내내 날씨가 좋았다.
There will be a meeting at three o'clock.
三点钟会有一个会议。
Habrá una reunión a las tres.
3時に会議があります。
3시에 회의가 있을 것입니다.

Pronunciación

Guía de uso

Contexto: general

Tono: neutral

Origen e historia

From Old English 'bēon', one of the oldest and most irregular verbs in English. Its forms (am, is, are, was, were) come from three separate Proto-Indo-European roots, merged over centuries into a single paradigm.

Contexto cultural

Era: Modern

Generation: All ages

Social background: Universal

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