be
gb/bˈi/ us/bˈi/
A1
英語
~ 100
語義
0件の語義
動詞
A1
state
1
to exist or to live
To live or to be real.
用法パターン：
[someone/something] is [adjective/noun]
よくある間違い：
Learners often forget to change 'be' to the correct form (am/is/are) for the subject.
類義語
exist (More formal; often used in philosophical or scientific contexts.)
対義語
cease (Means to stop existing or to end.)
コロケーション
be alive
|be here
|be present
|be real
|be gone
テーマ
daily life
|philosophy
|core_vocabulary
例文
- I think, therefore I am.
- Will you be at the meeting tomorrow?
- Dinosaurs used to be, but they are extinct now.
- She wants to be a teacher someday.
学習者向け例文
- I am happy.
- He is at school.
- We are friends.
- They are here.
動詞
A1
event
2
to happen or take place
To happen at a time or place.
用法パターン：
The [event] is [time/place]
よくある間違い：
Learners sometimes confuse 'be' with 'have' when talking about events (e.g., 'The party has on Friday' instead of 'is on Friday').
類義語
happen (Common alternative in casual speech.)
対義語
not happen (Simply indicates that an event does not occur.)
コロケーション
be on Monday
|be in summer
|be tonight
テーマ
daily life
|time
|core_vocabulary
例文
- The party will be next Friday.
- The meeting was at 3 p.m.
- The concert will be in the park.
学習者向け例文
- The game is on Sunday.
- The class will be in the morning.
- The test is next week.
動詞
A1
relation
3
to have a role or identity
To say what someone or something is.
用法パターン：
[someone/something] is [role/identity/description]
よくある間違い：
Learners sometimes omit 'a' before roles (e.g., 'I am teacher' instead of 'I am a teacher').
類義語
serve as (Often used for temporary roles.)
対義語
not be (Indicates absence of that role or identity.)
コロケーション
be a doctor
|be the leader
|be my friend
テーマ
daily life
|core_vocabulary
|communication
例文
- She is my sister.
- He wants to be an engineer.
- This is the main problem.
学習者向け例文
- I am a student.
- He is my brother.
- This is my book.
動詞
A2
state
4
to stay in a condition
To stay in the same way or place.
用法パターン：
[someone/something] is [adjective/location]
類義語
stay (Implies continuing without change.)
対義語
become (Indicates a change from one state to another.)
コロケーション
be quiet
|be available
|be open
テーマ
daily life
|core_vocabulary
例文
- Please be quiet during the movie.
- She was still in bed at noon.
- The shop will be open until 8 p.m.
学習者向け例文
- Be careful.
- The door is open.
- He is in the room.
文法
辞書形
be
IPA
GB/bˈi/
US/bˈi/
音節・強勢
be （1音節）
Stress on 1st syllable (be)
活用形
Verb
- Base: am, are, be
- 3rd Person Singular: is
- Present Participle: being
- Past: was, were
- Past Participle: been
関連語
Forms
is
verb
being
verb
was
verb
were
verb
been
verb
Core family
become
verb A2
Negative and opposite forms
nonexistent
adjective B2
文法ポイント
- Irregular 3rd person singular: is Verb
- Irregular past: was, were Verb
- Irregular past participle: been Verb
表現
be about to
1/bˈi əbˈaʊt tə/
fixed phrase
to be going to do soon
To be very near in time to doing something.
例文
- I was about to call you when you arrived.
- She is about to start her new job.
be into
1/bˈi ˈɪntu/
fixed phrase
informal
to like something a lot
To like something very much or be very interested in it.
例文
- He's really into jazz music these days.
- I'm not into horror films.
be up to someone
1/bˈi ˈʌp tə sˈʌmwˌʌn/
fixed phrase
decision is someone's responsibility
When something is someone's choice or responsibility.
例文
- It's up to you whether we go out tonight.
- The final decision will be up to the manager.
be over the moon
1/bˈi ˈoʊvɚ ðə mˈun/
idiom
informal
to be extremely happy about something
To feel very, very happy about something.
例文
- She was over the moon when she got the job.
- They were over the moon about their new baby.
be supposed to
1/bˈi səpˈoʊzd tə/
fixed phrase
to be expected to do something
To have a duty or expectation to do something.
例文
- You are supposed to finish your homework before dinner.
- You are supposed to hand in your homework on time.
- We were supposed to meet at 6 p.m.
- The train is supposed to arrive at 8 p.m.