Introduction

In this unit, we focus on one of the most important verbs in the English language: the verb to be. It may seem simple at first, but it is absolutely essential. We use it to introduce ourselves, to describe who we are, to talk about our job, our age, our nationality, our feelings, and much more. If you master this verb, you will be able to build your first real sentences in English with confidence.

Think about how often you say sentences like “I am tired”, “She is my sister”, or “Are you ready?”. All of these depend on the correct use of to be. Today, we will explore it carefully, step by step, so that by the end of the lesson you can use it naturally in statements, negatives, questions and short answers.

Learning Objectives

By the end of this unit, you will be able to use the verb to be correctly in the present simple.

You will form affirmative and negative sentences, ask and answer questions, and give short answers with confidence and accuracy in everyday situations.

The Verb “To Be” – Present Simple

Let us begin with the basic forms. In the present simple, the verb to be has three forms: am, is, and are. Each form depends on the subject.

When you say “I am”, you are talking about yourself. For example, “I am a teacher.” When you say “She is”, you are describing another person. For example, “She is Italian.” When you say “They are”, you are speaking about more than one person: “They are students.”

The form of the verb changes depending on the subject.

This is extremely important. English does not change the verb in many situations, but with to be you must always choose the correct form: am, is, or are. If the subject changes, the verb must change too.

Affirmative Sentences

An affirmative sentence is a normal positive sentence. The structure is simple: subject + verb.

For example: “I am happy.” “You are late.” “He is my brother.” “We are ready.” “They are at home.” Notice how the verb comes directly after the subject.

In spoken English, we often use contractions. Instead of “I am”, we say “I’m”. Instead of “You are”, we say “You’re”. Instead of “He is”, we say “He’s”.

Contractions are very common in everyday English, especially in conversation.

Negative Sentences

To form the negative, we simply add “not” after the verb.

“I am not tired.” “She is not at home.” “They are not ready.” The structure is still very clear: subject + verb + not.

In spoken English, we usually use negative contractions. For example: “is not” becomes “isn’t” and “are not” becomes “aren’t”.

Be careful with “I am not”.

We do not say “I amn’t” in standard English. Instead, we say “I’m not.” This is a very common mistake for beginners, so pay attention to this form.

Questions

To form a question with the verb to be, we change the order. Instead of subject + verb, we say verb + subject.

For example: “Are you ready?” “Is she your sister?” “Am I late?” Notice how the verb comes first.

This structure is different from many other verbs in English. With to be, we do not need auxiliary verbs like “do” or “does”. The verb itself moves to the beginning of the sentence.

Short Answers

When someone asks you a question with to be, you can answer with a short answer.

For example: “Are you tired?” You answer: “Yes, I am.” or “No, I’m not.” If someone asks: “Is she at home?” you answer: “Yes, she is.” or “No, she isn’t.”

Notice that in short answers we do not repeat the full sentence. We only use the subject and the correct form of the verb.

Practice Exercises

Now it is your turn to practice using the verb to be.

Read each sentence carefully and think about the correct form before writing your answer.

1. Complete: She ___ my friend.
2. Complete: They ___ at school.
3. Make negative: I am tired.
4. Make negative: He is ready.
5. Make a question: You are happy.
6. Make a question: She is your teacher.
7. Short answer: Are you from Italy? (Yes)
8. Short answer: Is he at home? (No)

Answer Key

1. She is my friend.
2. They are at school.
3. I am not tired.
4. He is not ready.
5. Are you happy?
6. Is she your teacher?
7. Yes, I am.
8. No, he isn’t.