A preposition is one of “The Eight Parts” of the English language. A preposition helps describe place, movement and time. Three of the most common prepositions are “In, On, and At”. “In” is often used with limits. “On” is often used when two things touch. “At” is often used with places or locations. Prepositions are used for phrases and time expressions. Slang, informal and idioms contain prepositions too.
Prepositions are in bold type.
Q: Are you at home now? A: Yes, I am in the kitchen.
Q: Was it hot on the subway today? A: Yes, I couldn’t wait to get off!
Q: Are you riding in the taxi today? A: Yes, I am getting a taxi at the airport!
More adverb examples.
Q: Isn’t it beautiful outside? A: Yes, it’s nice at the park too!
Q: Where will you stay while in London? A: At my friends home.
Q: Is she traveling to the sea? A: No, she is staying in the mountains.
Preposition: Words to help describe place, movement, time.