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1) I (be) 25 years old.

I 25 years old.

2) We (be) late for the football match.

We late for the football match.

3) It (be) cold and cloudy today.

It cold and cloudy today.

4) He (be) an employee in the company.

He an employee in the company.

5) They (be) in the library.

They in the library.

6) She (be) very happy today.

She very happy today.

7) The lorry (be) big and red.

The lorry big and red.

8) I (be) frightened of spiders.

I frightened of spiders.

9) They (be) very high mountains.

They very high mountains.

10) This woman (be) a Nobel Prize winner.

This woman a Nobel Prize winner.

 

1) I am not 25 years old / I'm not 25 years old.

2) We are not late for the football match. / We're not late for the football match. / We aren't late for the football match.

3) It is not cold and cloudy today. / It's not cold and cloudy today. / It isn't cold and cloudy today.

4) He is not an employee in the company. / He's not an employee in the company. / He isn't an employee in the company.

5) They are not in the library. / They're not in the library. / They aren't in the library.

6) She is not very happy today. / She's not very happy today. / She isn't very happy today.

7) The lorry is not big and red. / The lorry's not big and red. / The lorry isn't big and red.

8) I am not frightened of spiders. / I'm not frightened of spiders.

9) They are not very high mountains. / They're not very high mountains. / They aren't very high mountains.

10) This woman is not a Nobel Prize winner. / This woman's not a Nobel Prize winner. / This woman isn't a Nobel Prize winner.

See explanations of present simple negatives with verb to be...

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