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English A1: How to Ask and Say Your Age (Numbers & ‘To Be’)

ラウル・マグイニャ

Langcom 創設者 | ケンブリッジおよびSIELE試験の試験官

7月 25, 2026

A1📚 語彙⏱️ 3 min read
To talk about age in English, you always use the verb to be, not to have. This is a common mistake for Spanish speakers. For example, you say I am 30 years old, not I have 30 years old. To ask someone’s age, use the question How old…?, 例えば How old are you? または How old is he? When answering, state the subject, the correct form of to be, and the number. You can add years old at the end, but it is optional. Learning numbers is key to talking about age.

How Do You Ask Someone’s Age in English?

To ask about age in English, you use a special question phrase.

  • Start your question with How old…?
  • After How old, you need a form of the verb to be (am, is, or are).
  • Then, add the person or people you are asking about.

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How Do You Say Your Age in English?

When you say your age, you also use the verb to be. This is very important!

  • The basic structure is: Subject + to be (am/is/are) + number + (years old).
  • The words years old are optional. You can say I am 25 または I am 25 years old. Both are correct.
  • Remember to use the correct form of to be: I am, you are, he/she/it is, we are, they are.

What Numbers Are Important for Age?

To talk about age, you need to know numbers in English. For A1 level, focus on numbers up to 100.

  • Here are some common numbers you will use:
  • one, two, three, four, five, six, seven, eight, nine, ten
  • eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen
  • twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety, one hundred
Common Numbers for Talking About Age
番号 Word
1 one
5 five
10 ten
15 fifteen
20 twenty
25 twenty-five
30 thirty
40 forty
50 fifty
60 sixty
70 seventy
80 eighty
90 ninety
100 one hundred

  • How old are you? I am twenty-eight.
  • How old is your sister? She is nineteen years old.
  • How old are your parents? They are sixty and sixty-two.
  • My brother is thirty-five.
  • My grandmother is eighty-seven years old.

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スペイン語話者がよく犯す間違い

A very common mistake for Spanish speakers is to use to have when talking about age. This is because in Spanish you say “tener… años” (to have… years). However, in English, we use to be.

  • 誤り: I have thirty years old.
  • 正しい: I am thirty years old.
  • 誤り: How many years do you have?
  • 正しい: How old are you?

Always remember to use to be (am, is, are) with age in English.

よくある質問

Is it “years old” or just “years”?

You can say I am twenty-five または I am twenty-five years old. Both are correct. You cannot say I am twenty-five years. The word old is important if you include years.

Why do I use “to be” and not “to have” for age?

In English, we describe age as a state of being, not something you possess. So, we use the verb to be (am, is, are). This is a key difference from Spanish, where you use “tener” (to have).

Do I need to know all the numbers?

For A1 level, focus on numbers up to 100, especially for common ages like 1-20 and then the tens (20, 30, 40, etc.). You will learn more numbers as you progress in English.

関連レッスン

著者について:ラウル・マグイニャ

ラウル・マグイニャ氏は、認定Cambridge English試験対策センターである「Asociación Educativa Langcom」の所長であり、 アメリカ. 。語学教育および国際資格認定の分野で10年以上の経験を持ち、25カ国にわたる数千人の学生、教師、教育機関が、ケンブリッジ英語検定、IELTS、TOEFL、およびMichiganの英語資格を取得できるよう支援してきました。.

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