I am, you are, it is: how to use the verb be

Short answer: Use am with I, are with you and is with it. The verb be tells who or what someone or something is, or what it is like: I am happy, you are my friend, it is a cat. In English you must not leave out am, are or is. Do not say I happy.

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At a glance

SubjectVerb beShort formExample
IamI’mI am ready.
youareyou’reYou are kind.
itisit’sIt is a cat.

In short

What is the rule for “I am, you are, it is”?

The rule

Use am with I, are with you and is with it.

How it looks

I am · you are · it is

What it means

am, are and is tell who or what someone or something is, or what it is like.

When to use it

Use them before a describing word, a noun or an age.

How it works

Examples of “I am, you are, it is”

Common mistakes with “I am, you are, it is”

Exceptions: watch out

Be or have? Be or do?

Learners sometimes pick the wrong verb. Use be for who or what you are and how you feel. Use have for things you own. Use do only to make questions and negatives with action verbs.

IdeaCorrectCommon mistake
ageI am six.I have six.
feelingI am hungry.I have hungry.
owningI have a dog.I am a dog.
actionI like milk.I am like milk.

See also: have and has

Check yourself

  1. Fill the gap: “You ___ my friend.”
    Show the answer

    are you always takes are.

  2. Fill the gap: “It ___ a cat.”
    Show the answer

    is it takes is.

  3. Correct this: “I happy.”
    Show the answer

    I am happy. English needs am, are or is before a describing word.

How to practice “I am, you are, it is”

The interactive version adds step-by-step help, spoken instructions and a quick check. One rule card, one sound lesson and the first lesson of every stone are free to try; the rest is part of Full Access. See Full Access.

Questions

Why does English need “am, are, is”? Other languages do not.

In English a sentence needs a verb. With a describing word or a noun, that verb is be. Learners from languages without this rule often forget it, so say it out loud: I am, you are, it is.

Do I use “is” for a plural thing?

No. Is is for one thing (it, he, she). For more than one thing, use are: they are, we are, the books are.

What is the difference between “I am” and “I’m”?

They mean the same. I’m is the short form. Use it in speaking and in friendly writing. Use I am when you want to stress the words.

More Grammar Foundations rules

Used in these writing topics

Part of the 📘 Grammar tool. Level G1: Grammar Foundations. Đọc bằng tiếng Việt.

Written for English learners by the English for Fun team. How we write our lessons · Last updated 2026-11-05.

Reviewed by Chinh Q. Hoang, PhD, founder, English for Fun · 2026-10-30

← this, that, these, those he, she, it, we, they + is / are →