Learn the Verb “To Be” Negative

The verb “to be” is one of the most useful and most used verbs in any language. Since we use it to give information and to correct information, it is very important to be able to use “to be” correctly. This could mean the difference between saying “I am allergic to nuts” and “I’m not allergic to nuts”. While most situations will not be as life-threatening as an allergy, it is still important to know how to form negatives correctly.

That is why we have written this article that explains how to form the negative of the verb “to be” in the present and past, simple and continuous. At the end, there are some example exercises for you to practice forming the negative, too. 


The English Verb “To Be” 

No matter what your English level, one of the verbs that is used most often in English is the verb “to be”. This is true in many different languages. “To be” can be both the main verb and the auxiliary verb. It is used to talk about qualities, nationality, jobs, ages, relationships, locations, time, personality, and more! Remember that the verb “to be” does not need an auxiliary verb in questions or negative sentences!


The Negative Simple Present Tense 

The present simple is one of the most used tenses. There are three conjugations of “to be” in the present tense: am, is, and are. As a quick refresher of the present simple, remember that it varies by person. 

I am 
He / she / it is 
You / we / they are 

Now let’s look at those three forms of “to be” in the negative:



Remember that in the present simple, there is no contraction for am + not. Instead, “I’m not” is used. Let’s look at more examples: 

I’m not from Australia. I’m from New Zealand. 
You aren’t afraid of the dark, are you? 
He isn’t very tall. My sister is taller than him. 
We aren’t cousins. We are brother and sister. 
The cat isn’t allowed in the house.


The Negative Simple Past Tense 

While in the present tense, there are three conjugations of “to be”. In the past tense, there are only two conjugations. 

I / he / she / it was
You / we / they were 

Here are those two forms of “to be” in the negative:












When using the simple past we can also refer to a specific time in the past. 

Mike wasn’t very sporty when he was younger. 
Kelly and John weren’t friendly to me when we were in school together. 
I wasn’t afraid of dogs when I was a kid. 
They weren’t very helpful yesterday at the shop. When I asked them questions, they weren’t sure of the answers. 


The Negative Continuous 

You will also need to use “to be” in the negative for the past and present continuous. Most other verb tenses with “to be” use an auxiliary verb, so the negative will be applied to that auxiliary instead. 

But remember that the continuous forms use the same forms of “to be” as we learned in the simple tenses.

Here are some more examples of the present and past continuous tenses in the negative. 

He wasn’t swimming when you called. He was at the supermarket. 
My sister isn’t studying English this year. She is studying French instead. 
I wasn’t paying attention when the teacher told us what our homework is.  
They aren’t shopping for a new bed right now. They’re at the cinema.