Для того чтобы сделать предложения отрицательными в английском языке, необходимо использовать вспомогательные глаголы и частицу "not". Вот как это выглядит для каждого из предложений:
She lives in our town.
- She does not (doesn't) live in our town.
We study English.
- We do not (don't) study English.
The nurse begins to take the patient's temperature at 7 o'clock.
- The nurse does not (doesn't) begin to take the patient's temperature at 7 o'clock.
The doctor feels my pulse.
- The doctor does not (doesn't) feel my pulse.
You look well.
- You do not (don't) look well.
My best friend is ill.
- My best friend is not (isn't) ill.
Her granny takes medicine regularly.
- Her granny does not (doesn't) take medicine regularly.
He went to the office on foot.
- He did not (didn't) go to the office on foot.
I had a bad cough and a running nose.
- I did not (didn't) have a bad cough and a running nose.
A nurse put him in bed.
- A nurse did not (didn't) put him in bed.
Bill took a tablet for a stomachache.
- Bill did not (didn't) take a tablet for a stomachache.
The students helped the doctors and nurses in the hospital.
- The students did not (didn't) help the doctors and nurses in the hospital.
She met me at the corner of the street.
- She did not (didn't) meet me at the corner of the street.
Обратите внимание на использование вспомогательных глаголов "do", "does" и "did", которые зависят от времени и лица глагола в утвердительном предложении. Для настоящего времени используется "do" или "does" (для третьего лица единственного числа), а для прошедшего времени — "did". В случае с глаголом "to be" ("is") используется просто отрицательная форма "is not" (isn't).