The Verb To Be

Description vs Action — the simple difference that changes everything

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1. What is the verb “to be”?

The verb to be helps us give information about a person, place, thing, or situation. It often works like a bridge between the subject and the information.

WHO + TO BE + INFORMATION

Correct

I am happy.

She is a doctor.

They are at home.

We were tired.

Common mistakes

❌ I happy. → ✅ I am happy.

❌ She doctor. → ✅ She is a doctor.

❌ They at home. → ✅ They are at home.

In many languages, students can say something similar to “I happy” or “She doctor.” In English, when there is no action verb, we usually need a form of to be.

2. When do we use “to be”?

Identity

I am Jennifer. He is Tom.

Age

I am 20 years old. He is 35.

Jobs

She is a doctor. They are engineers.

Nationality

She is Italian. We are South African.

Feelings

I am excited. They were nervous.

Location

The book is on the table. We were at the airport.

Descriptions

The car is fast. The weather was cold.

3. Present, Past, and Future

Present Simple: now

Subject	To be	Example
I	am	I am ready.
You	are	You are ready.
He / She / It	is	She is ready.
We / They	are	They are ready.

Past Simple: before now

Subject	To be	Example
I / He / She / It	was	It was cold.
You / We / They	were	They were late.

Future Simple: after now

Subject	To be	Example
All subjects	will be	I will be ready. They will be ready.

Past → Present → Future
I was tired yesterday. I am tired now. I will be tired later.

4. First, Second, and Third Person

First Person

The speaker.

I am happy.

We are tired.

Second Person

The person you are speaking to.

You are happy.

You were late.

Third Person

Another person, thing, or group.

He is busy. She was tired. It is cold. They are ready.

5. Negative Forms and Questions

Negative

I am not tired.
He is not / isn’t here.
They are not / aren’t ready.
I was not / wasn’t hungry.
We were not / weren’t late.
She will not / won’t be there.

Questions

Am I late?
Are you ready?
Is she at home?
Was he tired?
Were they happy?
Will you be there tomorrow?

6. Main Rules: Translatable Version

Use this section when the student needs the rules in another language. The English stays simple so it translates cleanly.

Translate main rules:

7. The Two Teams in English

Team 1: Description / Information

Use to be when you give information.

happytiredcoldlatebusyhungrya teacherat home

The train is late.

The theater was cold.

Team 2: Actions

Use a normal verb when someone or something does something.

workstudyarrivedrivesleepeatgetclose

The train arrives late.

The theater gets cold.

Simple definition: To be describes what something is like. Normal verbs describe what something does.

8. Wasn’t vs Didn’t

Wasn’t / Weren’t

Wasn’t = was not. Weren’t = were not. They come from the verb to be.

The room wasn’t cold.

They weren’t ready.

Use this for descriptions or information.

Didn’t

Didn’t = did not. We use it with action verbs in the past.

She didn’t work.

The train didn’t arrive.

After didn’t, use the base verb.

✅ didn’t arrive ❌ didn’t arrived

Important: Do not say “didn’t was” or “didn’t were.” Use wasn’t or weren’t for the verb to be.

9. Conditional Examples

Description

The theater would stay open all winter if it wasn’t so cold inside.

Cold is information. We describe the condition inside the theater.

I would be on time if public transport wasn’t late.

Action / Change

The theater would stay open all winter if it didn’t get so cold inside.

Get is an action/change. We describe what happens over time.

I would be on time if public transport didn’t arrive so late.

Practice

There are 6 exercises with 8 questions each, plus a 10-sentence conditional challenge and a final mixed test.

Exercise 1: Choose the correct form of “to be”

Exercise 2: Present, Past, or Future

Exercise 3: Description or Action?

Exercise 4: Wasn’t / Weren’t / Didn’t

Exercise 5: Correct the Mistake

Exercise 6: Build the Sentence

10-Sentence Conditional Challenge

Choose the best answer. These test the difference between information and action.

Lesson Notes