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 'Pile Up': Definition, Usage, Examples

📖 Definition

Pile up means to accumulate or gather in a heap or large quantity over time, often creating a situation that requires attention or resolution.

Examples in context

The paperwork began to pile up on her desk, demanding immediate attention.
As the trash piled up outside, the neighborhood complained about the delays in collection.
With expenses piling up, he realized it was time to cut unnecessary costs.

📖 Definition

Pile up means to accumulate or gather in a heap or large quantity over time, often creating a situation that requires attention or resolution.

📝 Grammar Info

Separable

Yes

Can be split with an object, e.g., 'pile it up'.

Neutral

Appropriate for both everyday and professional contexts.

Transitive

Yes

Requires a direct object to indicate what is piling up.

📊 Conjugation Table

Tense	Form	Example
Present Simple	pile up	Books pile up quickly when you're an avid reader.
Past Simple	piled up	Dust and clutter piled up during the renovation.
Present Continuous	piling up	The snow is piling up outside as the storm continues.
Present Perfect	have piled up	Unanswered emails have piled up over the weekend.

💡 When to Use

Accumulating items over time

Use when referring to objects or issues that gather in large amounts over a period.

Example: "Documents can pile up if not filed promptly."

Describing a backlog

Use when explaining how tasks or duties accumulate faster than they are addressed.

Example: "Chores piled up after a week of neglect."

Indicating an overwhelming situation

Use when something accumulates to a point where it becomes difficult to manage.

Example: "Complaints piled up, prompting the team to improve service."

⚠️ Common Mistakes

Incorrect tense use

❌ Wrong: The debts is pile up rapidly.

✅ Correct: The debts are piling up rapidly.

💡 Tip: Ensure subject-verb agreement and correct continuous form when used.

Misuse in intransitive form

❌ Wrong: The reports pile up the desk.

✅ Correct: The reports pile up on the desk.

💡 Tip: Remember to use a prepositional phrase to indicate location.

Omitting direct object

❌ Wrong: He piles up every morning.

✅ Correct: He piles up the newspapers every morning.

💡 Tip: Include what is being piled up to convey complete meaning.

Practice

PILE UP - 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

The paperwork began to pile up on her desk, demanding immediate attention.
How National Parks Came to Be
2
Listen to example

As the trash piled up outside, the neighborhood complained about the delays in collection.
How to Become a Hiker
3
Listen to example

With expenses piling up, he realized it was time to cut unnecessary costs.
Bringing Animals Back to Life

Synonyms & Antonyms

Synonyms

accumulate amass

Antonyms

disperse

Quick Check

Complete the sentence with the correct phrasal verb:

"Over time, the leaves begun to ___ in the garden, turning it into a vibrant mess."

deplete

pile up

scatter

diminish

"As the years pile up, the weight of wisdom increases, shaping our journey into one of fulfillment and understanding."

In Context

In the bustling industrial era of late 19th century England, Isambard Kingdom Brunel, a prominent engineer, found himself facing the overwhelming challenge of building the Great Eastern ship. His daring plan was to construct the largest iron steamship the world had ever seen. As the ambitious project commenced, unforeseen problems began to pile up. The ship was designed to be over 690 feet long, and its unprecedented size led to numerous technical challenges. Supplies of necessary materials piled up due to logistical delays, causing frustration among the workers and financiers alike. Despite these setbacks, Brunel’s determination did not waver. He meticulously managed the piling up of complex tasks, using his expertise to devise innovative solutions. However, complications continued to emerge. Financial difficulties piled up, straining the resources of the project severely. Yet, driven by his indomitable spirit, Brunel pushed through. The resilient engineer managed to overcome these adversities, and in 1858, the majestic ship finally set sail. Although the Great Eastern faced mechanical issues afterward, it paved the way for future advancements in shipbuilding. Brunel’s legacy persisted, with his ability to manage towering challenges an inspirational tale of perseverance and ingenuity. His story highlights how obstacles, no matter how daunting, can be surmounted with relentless resolve.

❓ Frequently Asked Questions about Pile Up

What is the origin of pile up?

The phrase 'pile up' derives from the 16th century, where 'pile' meant a heap or stack. It gained popularity in English speaking communities as industrial and urban environments grew, necessitating a term for accumulated items or tasks.

Can pile up be used in formal and informal contexts?

Yes, 'pile up' is versatile, suitable for both formal and informal scenarios. In formal writing, it may describe work accumulations, while in informal contexts, it could refer to personal clutter.

What is the difference between pile up and accumulate?

Both 'pile up' and 'accumulate' imply gathering. However, 'pile up' often suggests visible physical accumulation or an overwhelming scenario, while 'accumulate' can be abstract and is frequently used for measurable quantities.

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

PILE UP - IN PRACTICE

Study Method Proposal

Examples in Context

Synonyms & Antonyms

Quick Check

In Context

❓ Frequently Asked Questions about Pile Up

Related Phrasal Verbs

Alessandra Nóbrega