Tom rode a bike. ⇒Tom didn't ride a bike.
Maya went to the zoo. ⇒Maya didn't go to the zoo.
I saw my friends yesterday.⇒ I didn't see my friends yesterday.
Tom rode a bike. ⇒Tom didn't ride a bike.
Maya went to the zoo. ⇒Maya didn't go to the zoo.
I saw my friends yesterday.⇒ I didn't see my friends yesterday.