Make the negative - paid
didn't pay
I took the bus to work last week. (the train)
I didn't take the bus to work last week, I took the train.
Make the negative - sat
didn't sit
He lost his mobile phone yesterday morning. (wallet)
He didn't lose his mobile phone yesterday morning, he lost his wallet yesterday morning.
They thought the lesson was easy. (the homework)
They didn't think the lesson was easy, they thought the homework was easy.
I borrowed some money from him last week. (last month)
I didn't borrow some money from him last week, I borrowed some money last month.
Make the negative - brought
didn't bring
Make the negative - put
didn't put
Make the negative - said
didn't say
Make the negative - waited
didn't wait
We slept at our aunt's house last night. (niece's house)
We didn't sleep at our aunt's house last night, we slept at our niece's house.
Make the negative - made
didn't make
Make the negative - thought
didn't think
She did yoga last Friday. (judo)
She didn't do yoga last Friday, she did judo.
I went shopping two days ago. (swimming)
I didn't go shopping two days ago, I went swimming.
She lent him a book yesterday. (a pen)
She didn't lend him a book yesterday, she lent him a pen.
My mother made a cake for my birthday last year. (two years ago)
My mother didn't make a cake for my birthday last year, she made a cake 2 years ago.
Make the negative - looked
didn't look