To use the verb 'to be' in the simple present tense, you must change its form to match the subject of the sentence. The three forms are 'am' (used with 'I'), 'is' (used with 'he', 'she', 'it'), and 'are' (used with 'you', 'we', 'they'). This essential verb is the foundation for describing identity, states, and locations in English.
Welcome to your essential guide on the most common verb in the English language: 'to be'. For beginners, understanding this verb is the first major step toward building clear and correct sentences. It might seem tricky because it changes form, but this guide will break it down simply. By the end, you'll know exactly how to use the verb 'to be' in simple present tense for statements, negatives, and questions.
What Are the Three Forms of 'To Be' in the Present Simple?
The verb 'to be' is an irregular verb, which means it doesn't follow the usual rules. In the simple present tense, it has three unique forms. The form you use depends entirely on the subject pronoun (or noun) in your sentence.
Let's look at each one.
When to use 'am'
The form 'am' is used with only one subject: I.
- I am a student.
- I am from Mexico.
- I am happy.
When to use 'is'
The form 'is' is used with the third-person singular subjects: he, she, and it. You also use 'is' with any singular noun, like 'the dog' or 'Maria'.
- He is a doctor.
- She is my sister.
- It is a beautiful day.
- The book is on the table.
When to use 'are'
The form 'are' is used with you, we, and they. You also use 'are' with any plural noun, like 'the cars' or 'my friends'.
- You are a good friend.
- We are a team.
- They are at the library.
- The cats are sleeping.
How Do You Make Negative Sentences Using the Verb 'To Be' in Simple Present Tense?
Creating a negative sentence is simple. You just add the word 'not' after the verb 'to be' (am, is, or are). The formula is: Subject + am/is/are + not + rest of sentence.
To sound more natural, English speakers often use contractions. A contraction is a shortened form of two words.
- is + not = isn't
- are + not = aren't
Note: There is no common contraction for 'am not', except in some informal questions. For statements, we usually contract the subject and 'am' to 'I'm not'.
Here are some examples:
- I am not late. (Or: I'm not late.)
- He is not a lawyer. (Or: He isn't a lawyer.)
- She is not at home. (Or: She isn't at home.)
- It is not cold outside. (Or: It isn't cold outside.)
- We are not finished. (Or: We aren't finished.)
- They are not from here. (Or: They aren't from here.)
How Do You Ask Questions Using the Verb 'To Be' in Simple Present Tense?
To ask a simple yes/no question, you change the order of the subject and the verb. Instead of Subject + Verb, you use Verb + Subject. This is called inversion.
The formula is: Am/Is/Are + Subject + rest of sentence + ?
Let's turn some statements into questions:
- Statement: She is a teacher.
- Question: Is she a teacher?
- Statement: They are ready.
- Question: Are they ready?
- Statement: I am right.
- Question: Am I right?
To answer these questions, you use 'Yes' or 'No', followed by the subject pronoun and the correct form of 'to be'.
- Is she a teacher? -> Yes, she is. / No, she isn't.
- Are they ready? -> Yes, they are. / No, they aren't.
Conclusion: You're Ready to Go!
Mastering the verb 'to be' is a huge achievement for any beginner. Remember the three forms and how they connect to the subject: I am, he/she/it is, and you/we/they are. From there, you can easily make negative sentences by adding 'not' and form questions by inverting the subject and verb. With consistent practice, you will become confident and accurate when you use the verb 'to be' in simple present tense.
Frequently Asked Questions (FAQ)
Can I use 'be' in a present tense sentence? No, you cannot use the base form 'be' directly with a subject in the simple present tense. You must always change it to 'am', 'is', or 'are'. For example, you cannot say "I be happy." The correct sentence is "I am happy."
What's the main difference between 'is' and 'are'? The main difference is whether the subject is singular or plural. Use 'is' for a single person or thing (he, she, it, the dog). Use 'are' for more than one person or thing (we, they, the dogs) and also for the pronoun 'you', whether you are talking to one person or many.
How do I make a negative question with the verb 'to be'? To form a negative question, you typically use the contraction ('isn't' or 'aren't') and place it at the beginning of the sentence, before the subject. For example, "Isn't she your cousin?" or "Aren't they coming to the party?" This form is common for showing surprise or confirming something you believe is true.
Why is the verb 'to be' so important in English? It is the most frequently used verb in English. It is essential for introducing yourself (I am...), describing people and things (She is tall), stating facts (The sky is blue), talking about location (We are at home), and forming other verb tenses like the present continuous (He is running). Without it, you cannot build basic sentences.