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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
are filled up
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "are filled up" is correct and usable in written English.
It can be used to describe something that has been completely filled or occupied, often referring to containers, spaces, or schedules. Example: "The seats for the concert are filled up quickly, so be sure to buy your tickets soon."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(2)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
44 human-written examples
Their heads are filled up with pop culture fluff.
News & Media
Since those rooms are filled up quickly, "I can't go to the same one consistently," he said.
News & Media
"Sometimes we have to tell people trying to book a room here that we are filled up," he said.
News & Media
"Most of the passages in the building are filled up to the ceilings with barrels of flour, pork, beef, fish, crackers et al.," Walter wrote to Amanda.
News & Media
In a metal the conduction-band levels are filled up to the Fermi level, which lies at an energy −W relative to a free electron outside the metal.
Encyclopedias
The interstices between eating and drinking are filled up with very strenuous endeavours to be facetious, quotations from Dickens's last novel, or, if that fails, from Punch, or The Man in the Moon, some college slang about the dons, and a disquisition upon political economy.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
13 human-written examples
Hotels are filling up.
News & Media
Slowly, companies are filling up empty offices.
News & Media
The Hamptons, too, are filling up.
News & Media
To begin with, they are filling up.
News & Media
Mailboxes are filling up with anti-Gingrich leaflets.
News & Media
Expert writing Tips
Best practice
When using "are filled up", ensure the context clearly indicates what is being filled and what it's being filled with for maximum clarity.
Common error
Avoid using "are filled up" in ambiguous contexts where the reader might not understand what is being filled. Always provide enough context to clarify the subject and content.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are filled up" functions as a passive verb phrase, indicating that a subject receives the action of being filled. Ludwig AI confirms this, showing its usage across various contexts where something is brought to a state of completion.
Frequent in
News & Media
32%
Science
50%
Wiki
6%
Less common in
Formal & Business
8%
Encyclopedias
2%
Reference
2%
Ludwig's WRAP-UP
In summary, the phrase "are filled up" is a versatile and commonly used passive verb phrase. Ludwig AI indicates its grammatical correctness and widespread usage across diverse contexts, ranging from News & Media to Scientific publications. It effectively communicates that something has reached its maximum capacity. When using "are filled up", ensure clarity by specifying what is being filled. Alternative phrases like "are fully occupied" or "have reached capacity" can be used for a more formal tone.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
are completely full
Replaces 'filled up' with 'completely full' for emphasis on the extent of fullness.
are fully occupied
Substitutes 'filled up' with 'fully occupied', emphasizing the state of being occupied rather than the act of filling.
are completely packed
Changes 'filled up' to 'completely packed', highlighting the density of the filling.
have reached capacity
Replaces the original phrase with a formal expression indicating that the maximum limit has been reached.
are saturated
Uses "saturated" in place of "filled up", implying a state where no more can be added or absorbed.
are brimming over
Replaces "filled up" with "brimming over", suggesting that something is so full that it's almost overflowing.
are crammed full
Emphasizes the crowded and tight nature of the filling by using "crammed full".
are loaded to capacity
Uses "loaded to capacity" instead of "filled up", indicating that something has been loaded to its maximum limit.
are replete
Replaces "filled up" with the more formal and literary term "replete", suggesting abundance and fullness.
are stacked high
Substitutes "filled up" with "stacked high", emphasizing the vertical accumulation of items.
FAQs
How can I rephrase "are filled up" to sound more formal?
For a more formal tone, you can use phrases like "are fully occupied", "have reached capacity", or "are replete" depending on the specific context.
What's the difference between "are filled up" and "are filling up"?
"Are filled up" indicates a completed action, meaning something is already full. "Are filling up" suggests an ongoing process, meaning something is in the process of becoming full.
Is it correct to say "is filled up" instead of "are filled up"?
The correct form depends on whether the subject is singular or plural. Use "is filled up" for a singular subject (e.g., "The glass is filled up") and "are filled up" for a plural subject (e.g., "The glasses are filled up").
What are some common things that "are filled up"?
Common examples include containers (like bottles or cups), spaces (like rooms or parking lots), schedules, and data storage devices. The phrase is used when these things reach their maximum capacity.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested