I know this is piece of cake for you, but let's have a look... just in case.
https://agendaweb.org/exercises/verbs/to-be-present-simple
https://agendaweb.org/verbs/tobe/
https://agendaweb.org/exercises/verbs/tobe-present.htm
https://agendaweb.org/verbs/to-be-exercises.html
https://www.english-4u.de/en/tenses-exercises/verb-to-be.htm
http://www.saberingles.com.ar/curso/lesson01/06.html
https://www.englisch-hilfen.de/en/exercises/tenses/be3.htm
http://www.eclecticenglish.com/grammar/PresentSimpleToBe1A.html
To Be - Affirmative
| Subject | To Be | Examples |
|---|---|---|
| I | am | I am from New Zealand. |
| You | are | You are Chilean. |
| He | is | He is twenty years old. |
| She | is | She is a nurse. |
| It | is | It is a big dog. |
| We | are | We are intelligent. |
| You | are | You are students. |
| They | are | They are married. |
To Be - Affirmative contractions are very frequent when we are speaking.
| To Be | Contraction | Examples |
|---|---|---|
| I am | I'm | I'm from New Zealand. |
| You are | You're | You're tall. |
| He is | He's | He's twenty years old. |
| She is | She's | She's a nurse. |
| It is | It's | It's a big dog. |
| We are | We're | We're intelligent. |
| You are | You're | You're students. |
| They are | They're | They're tired. |
To Be - Negative Sentences can be made by adding not after the verb.
| Subject | To Be | Examples |
|---|---|---|
| I | am not | I am not from Spain. |
| You | are not | You are not old. |
| He | is not | He is not ugly. |
| She | is not | She is not lazy. |
| It | is not | It is not a small cat. |
| We | are not | We are not fast. |
| You | are not | You are not teachers. |
| They | are not | They are not single. |
| I'm not from Spain. | --- | --------------* |
| You're not Australian. | OR | You aren't Australian. |
| He's not thirty years old. | OR | He isn't thirty years old. |
| She's not a secretary. | OR | She isn't a secretary. |
| It's not a small cat. | OR | It isn't a small cat. |
| We're not stupid. | OR | We aren't stupid. |
| You're not teachers. | OR | You aren't teachers. |
| They're not single. | OR | They aren't single. |
* Notice that the only possible contraction for I am not is I'm not.
To Be - Questions.To create questions with To Be, you put the Verb before the Subject.
| Affirmative | Question |
|---|---|
| I am intelligent. | Am I intelligent? |
| You are a student. | Are you a student? |
| He is a pilot. | Is he a pilot? |
| She is from Spain. | Is she from Spain? |
| It is a big house. | Is it a big house? |
| We are ready. | Are we ready? |
| You are doctors. | Are you doctors? |
| They are rich. | Are they rich? |

hello ines I am Ariadna
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