Чтобы преобразовать предложения в отрицательные, мы добавляем отрицательную частицу "not" после вспомогательного глагола "are" или "is". Вот как это сделать для каждого предложения:
They are buying a new car.
- They are not buying a new car.
He is learning to read.
- He is not learning to read.
I'm looking for your keys.
- I am not looking for your keys.
We are selling the house.
- We are not selling the house.
You are working very hard.
- You are not working very hard.
He is washing the dishes.
- He is not washing the dishes.
They are drinking tea.
- They are not drinking tea.
We are having a good time.
- We are not having a good time.
She is leaving him.
- She is not leaving him.
I am going home now.
- I am not going home now.
Каждое из предложений в настоящем времени образуется с помощью вспомогательного глагола "am", "is" или "are" и основной частицы "not" для отрицания.