Preposições "On", "On" e "B"

Prepositions "On", "At", and "In"

A preposition is a word that links a noun, pronoun, or noun phrase to some other part of the sentence.

Prepositions can be tricky for English learners. There is no definite rule or formula for choosing a preposition. In the beginning stage of learning the language, you should try to identify a preposition when reading or listening in English and recognize its usage.

• to the office

• at the desk

• on the table

• in an hour

• about myself

A preposition is used to show direction, location, or time, or to introduce an object.

Here are a few common prepositions and examples.

On

Used to express a surface of something:

• I put an egg on the kitchen table.

• The paper is on my desk.

Used to specify days and dates:

• The garbage truck comes on Wednesdays.

• I was born on the 14th day of June in 1988.

Used to indicate a device or machine, such as a phone or computer:

• He is on the phone right now.

• She has been on the computer since this morning.

• My favorite movie will be on TV tonight.

Used to indicate a part of the body:

• The stick hit me on my shoulder.

• He kissed me on my cheek.

• I wear a ring on my finger.

Used to indicate the state of something:

• Everything in this store is on sale.

• The building is on fire.

At

Used to point out specific time:

• I will meet you at 12 p.m.

• The bus will stop here at 5:45 p.m.

Used to indicate a place:

• There is a party at the club house.

• There were hundreds of people at the park.

• We saw a baseball game at the stadium.

Used to indicate an email address:

• Please email me at [e-mail].

Used to indicate an activity:

• He laughed at my acting.

• I am good at drawing a portrait.

In

Used for unspecific times during a day, month, season, year:

• She always reads newspapers in the morning.

• In the summer, we have a rainy season for three weeks.

• The new semester will start in March.

Used to indicate a location or place:

• She looked me directly in the eyes.

• I am currently staying in a hotel.

• My hometown is Los Angeles, which is in California.

Used to indicate a shape, color, or size:

• This painting is mostly in blue.

• The students stood in a circle.

• This jacket comes in four different sizes.

Used to express while doing something:

• In preparing for the final report, we revised the tone three times.

• A catch phrase needs to be impressive in marketing a product.

Used to indicate a belief, opinion, interest, or feeling:

• I believe in the next life.

Prepositions "Of", "To", and "For"

Of

Used for belonging to, relating to, or connected with:

• The secret of this game is that you can’t ever win.

• The highlight of the show is at the end.

• The first page of the book describes the author’s profile.

• Don’t touch it. That’s the bag of my friend’s sister.

• I always dreamed of being rich and famous.

Used to indicate reference:

• I got married in the summer of 2000.

• This is a picture of my family.

• I got a discount of 10 percent on the purchase.

Used to indicate an amount or number:

• I drank three cups of milk.

• A large number of people gathered to protest.

• I had only four hours of sleep during the last two days.

• He got a perfect score of 5 on his writing assignment.

To

Used to indicate the place, person, or thing that someone or something moves toward, or the direction of something:

• I am heading to the entrance of the building.

• The package was mailed to Mr. Kim yesterday.

• All of us went to the movie theater.

• Please