Using prepositions of time in Portuguese Grammar

Prepositions are small words, but they carry a lot of weight in the English language. They help us convey relationships between different elements in a sentence, and one of their key roles is to indicate time. Prepositions of time are essential in everyday communication, as they help us specify when something happens, happened, or will happen. This article will delve into the world of prepositions of time, examining their uses, common mistakes, and practical examples to help you master them.

Understanding Prepositions of Time

Prepositions of time are words that link nouns, pronouns, or phrases to a time element. They answer questions like “When?” and “For how long?” Some of the most commonly used prepositions of time include at, on, in, by, during, for, and since. Each has specific rules governing its use, and understanding these rules is key to using them correctly.

At

The preposition at is used to indicate a specific point in time. It is often used with:
– Clock times: “The meeting is at 3 PM.”
– Specific moments: “The fireworks will start at midnight.”

Additionally, at can be used to denote specific periods, like:
– “I usually work best at night.”
– “We have lunch at noon.”

On

The preposition on is used for days and dates. This includes:
– Days of the week: “I have a dentist appointment on Tuesday.”
– Specific dates: “Her birthday is on March 15th.”

On can also be used with parts of days, particularly when they are named:
– “I jog on Sunday mornings.”
– “He will arrive on the evening of the 10th.”

In

The preposition in is used for longer periods of time, such as months, years, decades, and centuries. For instance:
– Months: “We go on vacation in July.”
– Years: “She was born in 1990.”
– Decades: “Fashion was different in the 1980s.”
– Centuries: “Many changes occurred in the 20th century.”

In is also used for parts of the day:
– “I will call you in the morning.”
– “They usually swim in the afternoon.”

By

The preposition by is used to indicate a deadline or the latest time something will happen. It means “not later than”:
– “Please submit your report by Friday.”
– “I will be home by 6 PM.”

During

During is used to indicate a period or range of time in which something happens. It emphasizes the action taking place within that time frame:
– “I read three books during the summer.”
– “She was very busy during the conference.”

For

The preposition for is used to specify the duration of an action or event. It answers the question “How long?”:
– “They traveled for two weeks.”
– “He has been studying for three hours.”

Since

Since is used to indicate the starting point of an action or event that continues up to the present moment:
– “She has lived here since 2010.”
– “He has been working on this project since Monday.”

Common Mistakes with Prepositions of Time

Despite their importance, prepositions of time can be tricky for learners of English. Here are some common mistakes and how to avoid them:

Confusing “in” and “on”

A common mistake is using in instead of on for specific days and dates:
– Incorrect: “I have a meeting in Monday.”
– Correct: “I have a meeting on Monday.”

Remember, in is used for longer periods (months, years, centuries), while on is used for specific days and dates.

Incorrect Use of “at” with Days and Months

Some learners mistakenly use at with days or months:
– Incorrect: “We will meet at Friday.”
– Correct: “We will meet on Friday.”

– Incorrect: “The event is at July.”
– Correct: “The event is in July.”

Using “during” Incorrectly

Another common error is using during when for should be used:
– Incorrect: “I stayed there during two weeks.”
– Correct: “I stayed there for two weeks.”

Remember, during is used to denote a period in which something happens, while for is used for the duration of time.

Practical Examples and Exercises

To reinforce your understanding, let’s look at some practical examples and exercises.

Examples

1. “I will call you at 7 PM.”
2. “The movie starts at noon.”
3. “We are going to the beach on Saturday.”
4. “Her birthday is on December 1st.”
5. “I will visit my grandparents in the summer.”
6. “He was born in 1985.”
7. “Please complete the assignment by Monday.”
8. “She made several friends during the trip.”
9. “They stayed in Italy for a month.”
10. “He has been here since morning.”

Exercises

Complete the sentences with the correct preposition of time:

1. I will meet you ___ 5 PM.
2. She was born ___ July.
3. He will arrive ___ Monday.
4. The festival is ___ September.
5. She has been working here ___ 2015.
6. We stayed at the hotel ___ two weeks.
7. The store closes ___ midnight.
8. I usually exercise ___ the morning.
9. They traveled to Japan ___ the summer.
10. The homework is due ___ Friday.

Answers

1. I will meet you at 5 PM.
2. She was born in July.
3. He will arrive on Monday.
4. The festival is in September.
5. She has been working here since 2015.
6. We stayed at the hotel for two weeks.
7. The store closes at midnight.
8. I usually exercise in the morning.
9. They traveled to Japan during the summer.
10. The homework is due by Friday.

Advanced Tips for Mastering Prepositions of Time

Once you’ve grasped the basics, here are some advanced tips to help you master prepositions of time:

Pay Attention to Context

Context is crucial when choosing the right preposition of time. For instance, consider the difference between during and for:
– “I read a book during the flight.” (Focuses on the action happening within the flight time)
– “I read a book for three hours.” (Emphasizes the duration)

Practice with Native Speakers

Engage in conversations with native English speakers and pay attention to how they use prepositions of time. This real-world practice can help solidify your understanding and correct any mistakes.

Use Visual Aids

Create charts or timelines to visualize how different prepositions of time are used. This can be especially helpful for visual learners who need to see the relationships between different time elements.

Read Extensively

Reading books, articles, and other written materials in English can expose you to a variety of contexts in which prepositions of time are used. Pay attention to how authors use them and try to incorporate similar structures into your writing and speech.

Write Regularly

Practice writing sentences, paragraphs, or even short stories using prepositions of time. This will help reinforce your understanding and make their usage more natural.

Conclusion

Prepositions of time are an essential part of the English language, helping us to convey when actions and events occur. By understanding the rules for using at, on, in, by, during, for, and since, you can communicate more clearly and effectively. Remember to practice regularly, pay attention to context, and learn from native speakers. With time and effort, you’ll master prepositions of time and enhance your overall proficiency in English.

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