The preposition “on” is used in various situations, mainly to indicate:

Dates and Days – Used with specific days and dates.
On Monday, on July 4th, on Christmas Day.

Surfaces – When something is physically on top of something else.
On the table, on the wall, on the floor

Transportation – Used for public or large vehicles.
On a bus, on a plane, on a train.
(Exception: “in” is used for cars and taxis.)

Technology and Communication – Used with devices and media.
On the phone, on TV, on the internet.

Clothing and Accessories – To describe something being worn.
He has a hat on, she put her coat on.

Schedules and Agendas – To specify planned events.
On Friday, on the 10th of June, on the weekend (US).

Situations and Conditions – Used for states or activities.
On vacation, on a diet, on duty.

Sentences – Dates and Days – Used with specific days and dates.

  1. I have a meeting on Monday.
  2. We are going to a party on Friday night.
  3. Her birthday is on July 15th.
  4. They got married on Christmas Eve.
  5. I will visit my grandma on Sunday.
  6. School starts on September 1st.
  7. We have an exam on Wednesday morning.
  8. The store opens on New Year’s Day.
  9. She arrived on March 3rd.
  10. My flight is on Thursday afternoon.

Sentences – Surfaces – When something is physically on top of something else.

  1. The book is on the table.
  2. There is a picture on the wall.
  3. She left her phone on the bed.
  4. The keys are on the counter.
  5. I put my coffee on the desk.
  6. There is a cat sleeping on the sofa.
  7. He wrote something on the paper.
  8. My laptop is on the chair.
  9. The plates are on the shelf.
  10. She placed her sunglasses on her head.
  11. You can find that city on a map.
  12. The new dishes are on the menu.
  13. Her name is on the list of participants.
  14. The answer is on page 10.

Sentences – Transportation – Used for public or large vehicles.

  1. I am on the bus.
  2. She is on a train to London.
  3. We met on a plane.
  4. There are many people on the subway.
  5. He is on a ferry to the island.
  6. She forgot her bag on the tram.
  7. Tourists are taking pictures on the cruise ship.
  8. I love reading books on the train.
  9. My friend is on a motorcycle.
  10. They are on a helicopter tour.

Sentences – Technology and Communication – Used with devices and media.

  1. She is talking on the phone.
  2. I saw the news on TV.
  3. He is chatting with his friends on WhatsApp.
  4. We watched a movie on Netflix.
  5. There is a funny video on YouTube.
  6. I read an article on the internet.
  7. I read the article on a website.
  8. She posted a picture on Instagram.
  9. He is playing a game on his computer.
  10. I heard this song on the radio.
  11. They are having a meeting on Zoom.

Sentences – Situations and Conditions – Used for states or activities.

  1. She is on vacation. (Ela está de férias.)
  2. He is on a diet.
  3. The doctor is on duty.
  4. They are on a trip. (Eles estão em uma viagem.)
  5. I am on a break. (Estou no intervalo.)
  6. He is on call tonight. (Ele está de plantão hoje à noite.)
  7. She is on maternity leave. (Ela está de licença-maternidade.)
  8. The house is on fire! Call the firefighters! (A casa está pegando fogo! Chame os bombeiros!)
  9. She is traveling on business this week. (Ela está viajando a negócios esta semana.)
  10. The workers are on strike for better wages. (Os trabalhadores estão em greve por melhores salários.)
  11. The project is on hold. (O projeto está em espera.)
  12. He is on his way home. (Ele está a caminho de casa.)
  13. The team is on a winning streak. (O time está em uma sequência de vitórias.)

Sentences – Clothing and Accessories – To describe something being worn.

  1. She has a beautiful dress on. (Ela está usando um vestido bonito.)
  2. He put on a jacket because it was cold. (Ele colocou uma jaqueta porque estava frio.)
  3. I have my sunglasses on. (Estou de óculos escuros.)
  4. She is wearing a ring on her finger. (Ela está usando um anel no dedo.)
  5. He always has a hat on. (Ele sempre está de chapéu.)
  6. Put your shoes on before going outside. (Calce seus sapatos antes de sair.)
  7. She tried on a new dress at the store. (Ela experimentou um vestido novo na loja.)
  8. He has a backpack on his shoulders. (Ele tem uma mochila nas costas.)
  9. I have my gloves on because it’s cold. (Estou de luvas porque está frio.)
  10. She put on her ring after the wedding. (Ela colocou o anel depois do casamento.)

Sentences – Open Vehicles and Rides – Veículos abertos e montáveis

  1. He loves riding on a motorcycle. (Ele adora andar de moto.)
  2. She goes to school on a bike. (Ela vai para a escola de bicicleta.)
  3. They arrived on a scooter. (Eles chegaram de patinete.)
  4. She learned to ride on a horse when she was young. (Ela aprendeu a andar a cavalo quando era jovem.)
  5. The workers were sitting on the back of a truck. (Os trabalhadores estavam sentados na carroceria de um caminhão.)
  6. We had fun on a speedboat during the trip. (Nos divertimos em uma lancha durante a viagem.)
  7. He is riding on a jet ski right now. (Ele está andando de jet ski agora.)

Sentences – Locations and Positions/Geographical Locations

  1. The logo is on the front of the T-shirt. (O logo está na frente da camiseta.)
  2. There is a stain on the back of your jacket. (Tem uma mancha na parte de trás da sua jaqueta.)
  3. The café is on the corner of Main Street. (O café fica na esquina da Rua Principal.)
  4. The town is on a river, so the view is amazing. (A cidade fica às margens de um rio, então a vista é incrível.)
  5. There was an accident on the road. (Houve um acidente na estrada.)
  6. They have a summer house on the coast. (Eles têm uma casa de verão na costa.)

Sentences – Topic or Subject – Used to indicate the subject of discussion, study, or focus.

  1. She gave a speech on mental health. (Ela fez um discurso sobre saúde mental.)
  2. I watched a documentary on space exploration. (Eu assisti a um documentário sobre exploração espacial.)
  3. He wrote a report on global warming. (Ele escreveu um relatório sobre o aquecimento global.)
  4. She gave a speech on climate change. (Ela fez um discurso sobre mudanças climáticas.)
  5. I read a book on ancient history. (Eu li um livro sobre história antiga.)
  6. He wrote an article on artificial intelligence. (Ele escreveu um artigo sobre inteligência artificial.)

And more… (De tempo em tempo vai ser atualizado)

  1. He wrote a note on a piece of paper.(Ele escreveu um bilhete em um pedaço de papel.)
  2. There is a stain on your shirt.(Tem uma mancha na sua camisa.)
  3. They live on the second floor.(Eles moram no segundo andar.)
  4. The kids are playing on the ground.(As crianças estão brincando no chão.)
  5. The book is on sale this week.(O livro está em promoção esta semana.)
  6. The restaurant is on the left side of the street.(O restaurante fica no lado esquerdo da rua.)
  7. I found a scratch on my car.(Eu encontrei um arranhão no meu carro.)
  8. He wrote a comment on my post.(Ele escreveu um comentário na minha postagem.)
  9. We went on a roller coaster ride.(Nós fomos em um passeio de montanha-russa.)
  10. She has a tattoo on her arm.(Ela tem uma tatuagem no braço.)
  11. The teacher wrote the answer on the board.(O professor escreveu a resposta no quadro.)
  12. The city is on the border of two countries.(A cidade fica na fronteira de dois países.)