Which sentence uses 'come across' correctly?

I came across an old photo while cleaning the attic

I came across the street to meet you

I came across an old photo while cleaning the attic

The bridge came across the river

Which sentence uses 'come across' correctly?

She comes across as very confident in interviews

He came across the finish line first

Which sentence uses 'come by' correctly?

Good jobs are hard to come by these days

The bus will come by this route

Good jobs are hard to come by these days

I come by the office every morning at 8

Which sentence uses 'come by' correctly?

Can you come by my house later for coffee?

The train came by the station too fast

She comes by the grocery store home

Which sentence uses 'come out' correctly?

The new iPhone will come out next month

I need to come out from the house now

The new iPhone will come out next month

Which sentence uses 'come out' correctly?

The truth finally came out after the investigation

The students came out to the classroom

Understanding the Phrasal Verb: Zero In On

📖 Definition

To focus one's attention or resources on a particular issue or task, often to enhance effectiveness or achieve success in an operation.

Examples in context

She zeroed in on the missing piece of the puzzle, solving the mystery immediately.
As the debate intensified, the moderator zeroed in on key points made by each participant.
We need to zero in on customer feedback to improve our services effectively.

📖 Definition

To focus one's attention or resources on a particular issue or task, often to enhance effectiveness or achieve success in an operation.

📝 Grammar Info

Separable

Yes

You can separate the verb and particle. E.g., 'zero in the data on.'

Neutral

The phrasal verb is suitable for both formal and informal contexts.

Transitive

Yes

It requires a direct object to convey complete meaning.

📊 Conjugation Table

Tense	Form	Example
Present Simple	zero in on	They zero in on market trends to stay competitive.
Past Simple	zeroed in on	The company zeroed in on a new strategy.
Present Continuous	zeroing in on	She is zeroing in on the root of the problem.
Present Perfect	have zeroed in on	We have zeroed in on the top priorities for this quarter.

💡 When to Use

Analyzing data trends

Use when intensely focusing on particular data points to derive insights or make data-driven decisions.

Example: "We need to zero in on consumer behavior trends this month."

Solving complex problems

Applicable when addressing the fundamental aspects of a complicated issue to find practical solutions.

Example: "The engineers zeroed in on the malfunction causing the system failure."

Strategic planning

Utilize when directing resources or attention towards specific strategic goals or crucial sectors.

Example: "The team must zero in on critical projects for the upcoming fiscal year."

⚠️ Common Mistakes

Incorrect preposition

❌ Wrong: They zeroed at the problem.

✅ Correct: They zeroed in on the problem.

💡 Tip: Always use 'in on' after 'zero'.

Misplacing object

❌ Wrong: Zero on in the target directly.

✅ Correct: Zero in on the target directly.

💡 Tip: Ensure 'zero in on' stays together before the object.

Removing 'in on'

❌ Wrong: They zeroed the issues.

✅ Correct: They zeroed in on the issues.

💡 Tip: Never omit 'in on' after 'zero'.

Practice

ZERO IN ON - IN PRACTICE

Study Method Proposal

Listen and repeat the audio as many times as needed to improve your pronunciation
Use the audio as a dictation exercise, trying to write what you hear and understand
Create a new sentence following the structure of the example sentences

Examples in Context

1
Listen to example

She zeroed in on the missing piece of the puzzle, solving the mystery immediately.
How National Parks Came to Be
2
Listen to example

As the debate intensified, the moderator zeroed in on key points made by each participant.
How to Become a Hiker
3
Listen to example

We need to zero in on customer feedback to improve our services effectively.
Bringing Animals Back to Life

Synonyms & Antonyms

Synonyms

focus on concentrate on

Antonyms

ignore

Quick Check

Complete the sentence with the correct phrasal verb:

"The detective quickly ___ on the main suspect in the investigation."

zero up

zero in on

zero through

zero across

"When life's chaos strikes, zero in on the true center, for in focus lies the clarity we all seek and need."

In Context

During World War II, the Allied Forces employed groundbreaking radar technology to gain an advantage over enemy forces. The invention of radar allowed them to zero in on enemy planes with remarkable precision, transforming the war's dynamics. In the Battle of Britain, the Royal Air Force used radar to track incoming German aircraft, directing their squadrons effectively to counter the attacks. This technology enabled them to zero in on threats from miles away, providing critical time for strategic responses. As the war progressed, radar stations were established along the coasts, and operators continually improved their ability to zero in on targets, enhancing raid detection and interception. One significant event occurred during the Dunkirk evacuation when Allied forces were able to zero in on approaching Luftwaffe formations, allowing them to organize defensive measures and successfully evacuate countless soldiers from the beaches. The efficiency with which they zeroed in on the enemy's movements contributed significantly to the operation's success. By the end of the war, this technology had been refined further, proving invaluable in multiple theaters of conflict. Today, radar is a cornerstone of military operations worldwide, with its ability to zero in on distant and fast-moving threats consistently evolving.

❓ Frequently Asked Questions about Zero In On

What is the origin of zero in on?

The phrase 'zero in on' originates from military jargon, specifically relating to artillery and bomb aiming. It conceptualizes the act of adjusting aim so that range zeroes in directly on the target.

Can zero in on be used in formal and informal contexts?

Yes, 'zero in on' is versatile and can be used in both formal and informal contexts. It effectively communicates focused attention, making it suitable for business reports and casual conversations alike.

What is the difference between zero in on and focus on?

'Zero in on' implies a more precise or pinpointed focus compared to 'focus on,' which is broader. 'Zero in on' often suggests narrowing down to specifics, whereas 'focus on' could refer to a general attentiveness.

Browse All National Parks Phrasal Verbs

About the Author

Alessandra Nóbrega

History teacher who fell in love with English! This passion led me to specialize in languages and work on bilingual education projects. With 37 years in education, I believe learning should be meaningful – not just memorization.

Learn more about my journey

📖 Definition

📖 Definition

📝 Grammar Info

📊 Conjugation Table

💡 When to Use

⚠️ Common Mistakes

ZERO IN ON - IN PRACTICE

Study Method Proposal

Examples in Context

Synonyms & Antonyms

Quick Check

In Context

❓ Frequently Asked Questions about Zero In On

Related Phrasal Verbs

Alessandra Nóbrega