Used and loved by millions
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
as it course
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as it course" is not correct in written English.
It seems to be a misphrasing, possibly intended to convey a different meaning. Example: "The project will proceed as it courses through the various stages of development."
⚠ May contain grammatical issues
Science
News & Media
Academia
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
1 human-written examples
In the adult, the apical dendrites of mitral/tufted cells are branchless as it course through the EPL, and arborize after they reach the glomerular neuropil.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
You'll see there's a little a bit of instability showing up as it courses along its way toward a solution.
My eyes stung as it coursed down my face and I suppressed a scream, holding my breath.
News & Media
"No, no," Karl-Peter said, dismissively, inspecting the matter as it coursed slowly down the victim's silently screaming features.
News & Media
Our Cessna 185 flew a scenic route over the Ram River, which sparkled in the sunlight as it coursed through steep cliffs that evoked the Grand Canyon.
News & Media
The densely reconstructed volume created an irregular rectangle centered on the apical dendrite as it coursed through the neuropil (Fig. 4b,c).
Science & Research
MARGARET H. VELARD Upper West Side I love to wake up in the night to Amtrak's whistle as it courses north in the tunnel under Riverside Park.
News & Media
The mild breeze that blew in between both Gothic masses perhaps took a moment as it coursed to notice the openness of space as I did.
Academia
The neon no longer works, but the sign is particularly striking against a pristine blue sky when glimpsed from the Gowanus Expressway or the elevated stretch of the F train as it courses through western Brooklyn.
News & Media
The iron bars of the cell window looked out over the cliffs; the sea roared all night as it coursed through the rocks, like blood in the arteries and thoughts in the spirals of the brain.
News & Media
As it courses upward through the abdomen, the inferior vena cava receives blood from the common iliacs and from the lumbar, renal, suprarenal, and hepatic veins before emptying into the right atrium.
Encyclopedias
Expert writing Tips
Best practice
Ensure the verb "course" is correctly conjugated to match the subject. Use "courses" for singular subjects (e.g., "as it courses") and consider alternative verbs like "flows" or "progresses" for clarity and grammatical accuracy.
Common error
Avoid using the base form of "course" with a singular subject. Always conjugate the verb appropriately, opting for "courses" when the subject is singular (e.g., "it") to maintain grammatical correctness.
Source & Trust
84%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as it course" is grammatically questionable, acting as an adverbial clause intended to modify a verb. Ludwig AI indicates the phrasing is likely incorrect. It attempts to describe a concurrent action or state but needs proper conjugation to be grammatically sound.
Frequent in
Science
33%
News & Media
33%
Academia
33%
Less common in
Encyclopedias
0%
Formal & Business
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "as it course" presents grammatical challenges due to incorrect verb conjugation. Ludwig AI identifies the phrase as grammatically incorrect and suggests using "as it courses" or alternative phrasings such as "as it flows" or "as it progresses". While examples can be found across various sources including Science, News & Media, and Academia, the infrequency and grammatical issues suggest careful consideration and potential revision when using this phrase. Ensuring correct verb conjugation or opting for clearer alternatives will improve both the accuracy and impact of your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
as it courses
Corrects the verb conjugation to the third-person singular present, aligning with standard English grammar.
as it flowed
Replaces "course" with "flowed", providing a grammatically correct and semantically similar alternative, particularly for describing liquids or movement.
as it moved
Uses "moved" as a general term for progression or movement, applicable in various contexts.
as it progressed
Replaces "course" with "progressed", offering a more formal and grammatically correct alternative, suitable for describing the advancement of a process or project.
as it traveled
Uses "traveled" to describe movement from one place to another, focusing on the journey aspect.
as it passed
Emphasizes the action of something going by or through a specific point or area.
as its course
This is likely a typo as the meaning is unclear.
as it went
Uses "went" as a simple and general way to describe the progression or movement of something.
during its course
Adding "during" to specify the time frame in which something progresses or unfolds.
while it coursed
Employs "coursed" in its past tense form, offering a more grammatically sound structure, especially in narrative contexts.
FAQs
What is the correct form, "as it course" or "as it courses"?
"As it courses" is the grammatically correct form. The verb must agree with the singular subject "it".
Can I use another word instead of "course" in the phrase "as it course"?
Yes, depending on the context, you can use words like "flows", "progresses", or "moves" to convey a similar meaning. For example, "as it "flows"" or "as it "progresses"".
Is "as it course" considered formal or informal?
The phrase is generally considered incorrect due to grammatical errors, regardless of the formality of the context. Using correct conjugations or alternative phrases is recommended for both formal and informal writing.
How can I use "as it course" correctly in a sentence?
The phrase "as it course" is grammatically incorrect. Instead, use "as it courses" or rephrase the sentence using a different verb. For instance, "The river flows as it "winds" through the valley."
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
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
2.8/5
Expert rating
Real-world application tested