Affirmative

In the Indicative form, this verb has 3 forms... "Am – Is – Are". Each form belongs to different Pronouns.

PRONOUN

TO BE

CONTRACTION

I

Am

I'm

You

Are

You're

He

Is

He's

She

Is

She's

It

Is

It's

We

Are

We're

They

Are

They're

That is to say that, when the Personal Pronoun "I" appears in a sentence, we must use "Am".

When the Pronoun is "He - She - It" we use "Is".

When the Pronoun is "You - We - They" we use "Are".

The short form (or contraction) is often used in conversations or informal texts.

Examples

I am interested.

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American

She is tall and pretty.

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They are students.

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Emily is my sister.

Personal Pronoun "She (Emily)".
Add Verb "Is" = Emily "is" my sister.

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Tom and Emily are friends.

Personal Pronoun "They (Tom and Emily)".
Add Verb "Are" = Tom and Emily "are" friends.

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I'm 23 years old.

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Manny is 3 years old.

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Negative

To negate the "Verb To Be" we do not need an auxiliary.

PRONOUN

TO BE

CONTRACTION

I

Am not

I'm not

You

Are not

You aren't

He

Is not

He isn't

She

Is not

She isn't

It

Is not

It isn't

We

Are not

We aren't

They

Are not

They aren't

That is to say that, to write the negative form of the "Verb To Be", we add "Not" after the verb (or the short form or contraction).

Examples

My mum isn't a good singer.

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They aren't my classmates.

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He is not guilty.

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The baby isn't crying.

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I'm not 25 years old.

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INTERROGATIVE

In the Interrogative form, the "Verb To Be" is written before the Pronoun or Subject of the sentence and it can't be contracted.

TO BE

PRONOUN

Am

I

Are

You

Is

He

Is

She

Is

It

Are

We

Are

They

Examples

Is he tired?

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Are you at home?

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Is Tom your boyfriend?

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Are they interesting?

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Am I your best friend?

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Affirmative

Conjugated in the Simple Past, the form of the verb changes.

PRONOUN

TO BE

I

Was

You

Were

He

Was

She

Was

It

Was

We

Were

They

Were

Examples

She was at school yesterday.

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They were friends.

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She was engaged.

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Richard was ill.

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My parents were angry.

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Negative

In the Simple Past, the Negative form of the "Verb To Be" can be contracted.

PRONOUN

TO BE

CONTRACTION

I

Was not

Wasn't

You

Were not

Weren't

He

Was not

Wasn't

She

Was not

Wasn't

It

Was not

Wasn't

We

Were not

Weren't

They

Were not

Weren't

Examples

They weren't speaking.

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Kate was not pregnant.

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I wasn't in Paris last year.

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You weren't driving too fast.

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INTERROGATIVE

Like in the Present, the "Verb To Be" is written before the Pronoun or Subject of the sentence.

TO BE

PRONOUN

Was

I

Were

You

Was

He

Was

She

Was

It

Were

We

Were

They

Examples

Was he smoking?

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Were you married?

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Was she watching tv?

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Was it raining?

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1 The Verb To Be hasn't got a negative form.

2 Bob _____ my doctor.

3 _____ she at work yesterday?

4 My grandparents _____ driving home.

5 I _____ going with you.

6 The Verb To be has 3 forms in the Present Tense.

7 The Past form of the Verb To be is only "Was".

8 The Past Participle of the Verb To be is "Been".

9 She _____ so pretty!

10 They _____ my parents.

11 I _____ as tall as you.

12 Emily _____ studying yesterday.

13 Tom and Peter _____ friends.

14 My mom _____ at work.

15 _____ she your sister?