BASIC-GRAMMAR-U-1.2

	1.2.	*to be (negative)*
		*a/an + occupation*

	She isn’t Mexican.
	She’s from Argentina.

She isn’t thirty-five.

She’s thirty.

She isn’t married. She’s single.

She isn’t a nurse. She’s a doctor.

PRESENTATION

Negative

am not

Mexican.

from Mexico.

thirty-five.

married.

She

is not

You

They

are not

I‘m not

Mexican

from Mexico.

thirty-five.

married.

He isn’t

She isn’t

You aren’t

We aren’t

They aren’t

TIP

These negative forms are also possible:

he‘s not, we‘re not …

a/an + occupation

Use a/an (indefinite article) with a person’s occupation.

I’m

You’re

He’s

She’s

a doctor.

an artist.

We’re

You’re

They’re

doctors.

artists.

Use a before words that start with a consonant sound: a doctor, a teacher…

Use an before words that start with a vowel sound: an artist, an engineer…

Don’t use a/an with plurals: Say doctors (don’t say ~~a doctors~~).

TIP

Most plurals are formed by adding -s to the singular: doctors, teachers, artists, engineers…

See more: Spelling rules⇒

Key vocabulary

Occupations: artist, doctor, engineer, musician, nurse, student, teacher

EXERCISES⇒

BASIC-GRAMMAR-U-1.2

1.2.

to be (negative)