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
good by this
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "good by this" is not correct in written English.
It seems to be an attempt to convey approval or agreement, but it lacks clarity and proper structure. Example: "If you think this plan is effective, then I would say it is good by this reasoning."
⚠ May contain grammatical issues
News & Media
Wiki
Science
Academia
Formal & Business
Encyclopedias
Alternative expressions(1)
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
6 human-written examples
I wasn't feel that good by this point but stuck it out until the end of the day.
News & Media
"I have schools that look good by this metric that we're very worried about," said Peter Robertson, the Cleveland district's chief assessment officer.
News & Media
And it's time somebody stood up for hard-working, taxpaying Americans and said 'enough!' And if that makes the old order uncomfortable, my answer is, good!" By this point he was practically yelling.
News & Media
"I was feeling pretty good by this time - like "three-martinis good" -- from lack of oxygen," my Dad reminisces.
News & Media
Sean Gandert of Paste said that "Floyd" was not a great episode, "but it's still pretty good by this season's standards, if a somewhat disappointing use of Floyd's return".
Wiki
Good: By this stage, the postcard has lived a little and shows signs of its journey.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
"As a player, we hoped he'd be this good by the end of next year.
News & Media
(No mall's tostadas would ever taste this fucking good, by the way).
News & Media
The truth is that voters in coal country have been sold a bill of goods by this would-be savior of the coal industry.
Academia
– sell to insurance companies so that they look good by offering this, but in reality not useful but big symbolic value.
Recommended as "very, very good" by William Gibson, this is the other face of cyberpunk, a face we've seen too little of in the past decade.
News & Media
Expert writing Tips
Best practice
When aiming to express agreement or approval based on certain reasoning, use grammatically sound alternatives like "good in this context" or "valid based on this" for clearer communication.
Common error
Avoid combining "good" directly with "by this" to indicate agreement or justification; instead, restructure your sentence for clarity by using phrases that explicitly state the basis for your approval, such as "good in this context".
Source & Trust
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "good by this" attempts to function as an expression of approval or agreement based on a particular justification. However, it deviates from standard English grammar. Ludwig AI also identifies this phrase as grammatically incorrect and suggests alternative phrasing for accurate communication.
Frequent in
News & Media
33%
Wiki
33%
Science
17%
Less common in
Academia
17%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "good by this" is an attempt to express approval or agreement based on a particular rationale, but it's generally considered grammatically incorrect in standard English. As Ludwig AI specifies, clearer and more grammatically sound alternatives should be used to express such meanings. While examples can be found across various source types—including News & Media, Wiki, Science, and Academia—it's better to opt for phrases like "good in this context", "acceptable in this case", or "valid based on this" to ensure clarity and grammatical correctness. These alternatives maintain the intended purpose of conveying agreement or justification, while adhering to standard English conventions.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
good in this context
Emphasizes the suitability or appropriateness of something within a specific situation or setting.
acceptable in this case
Indicates that something is permissible or satisfactory under the given circumstances.
valid based on this
Suggests that something is logically sound or justified given the preceding information or evidence.
justified by this
Implies that there's sufficient reason or evidence to support a particular action or decision.
agreeable under these conditions
Highlights the conditional nature of an agreement, emphasizing that it's acceptable only within the specified circumstances.
appropriate given this
Stresses the suitability of something considering the existing situation or details.
sound based on this
Conveys that something is reasonable, logical, or well-founded based on the information provided.
suitable considering this
Indicates that something is well-matched or appropriate for the current situation or factors.
works given this
Suggests that something is effective or functional, taking into account the present conditions or information.
satisfactory in light of this
Indicates that something meets the requirements or expectations when viewed in relation to the current circumstances.
FAQs
How can I use "good by this" correctly?
The phrase "good by this" is not considered standard English. Consider using alternatives like "good in this context" or "acceptable in this case" to express a similar meaning with proper grammar.
What's a more appropriate substitute for "good by this" in formal writing?
In formal writing, it's best to avoid "good by this". Instead, use phrases like "valid based on this" or "justified by this" to maintain clarity and professionalism.
Is "good by this" ever grammatically correct?
The phrase "good by this" doesn't adhere to standard English grammar rules. It's more accurate to use constructions that clearly link the approval to the reason, such as "appropriate given this" or "suitable considering this".
What are some common mistakes people make when trying to use "good by this"?
A common mistake is directly translating a thought into this phrase without considering proper English structure. It's more effective to restructure the sentence to clearly express the basis of agreement or approval using phrases like "sound based on this" or "agreeable under these conditions".
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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
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested