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
the basis was
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "the basis was" is correct and usable in written English.
It can be used when discussing the foundation or underlying reason for something in a past context. Example: "The basis was a thorough analysis of the data collected over the last year."
✓ Grammatically correct
Science
News & Media
Academia
Alternative expressions(4)
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
16 human-written examples
There was some stuff we did that wasn't good, but the basis was strong.
News & Media
But we need not explore further what the basis was for the Territorial Supreme Court's finding on this charge.
Academia
Kelly supports the theory, common to many explanations of anti-Semitism, that the basis was not just paranoid but economic.
News & Media
The basis was syngas feed to a 2500 MTPD methanol plant.
Science
That of Greece began with the republican government of 1828: the basis was the silver phoenix of 100 lepta.
Encyclopedias
DOENITZ: Today I do not approve of that order since I have learned here that the basis was not so sound.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
44 human-written examples
The basis is appreciation.
The basis is theoretical and partly empirical.
The possibility of such an unfavourable movement in the basis is known as basis risk.
Encyclopedias
The basis functions are not spatially localized, and representations in terms of the basis are susceptible to ringing.
Academia
The basis is a garlicky tomato sauce; canned tomatoes are not only fine but preferable here.
News & Media
Expert writing Tips
Best practice
When using "the basis was", ensure the context clearly indicates what the foundation or reason is. Avoid ambiguity by explicitly stating the elements that constitute the basis.
Common error
Avoid using "the basis was" without clearly specifying what the basis refers to. Ensure the reader can easily identify the subject that the basis supports or explains to prevent confusion.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "the basis was" functions as a linking phrase, introducing the fundamental reason, justification, or origin of something. It connects a statement to its underlying support, as shown in Ludwig's examples.
Frequent in
Science
31%
News & Media
31%
Academia
19%
Less common in
Encyclopedias
6%
Wiki
6%
Formal & Business
0%
Ludwig's WRAP-UP
The phrase "the basis was" serves as a connector to introduce the underlying foundation or reason for something, primarily in a past context. According to Ludwig, it is grammatically correct and frequently used in various settings, including science, news, and academia. While alternatives like "the foundation was" and "the rationale was" exist, "the basis was" effectively provides clarity and justification. The key is to ensure that the context clearly specifies what the basis refers to, avoiding ambiguity and maintaining a neutral to formal tone.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
the foundation was
Replaces "basis" with "foundation", emphasizing the fundamental support or groundwork.
the rationale was
Substitutes "basis" with "rationale", highlighting the logical reasons behind a decision or action.
the reason was
Uses "reason" instead of "basis", focusing on the cause or explanation for something.
the justification was
Emphasizes the act of showing something to be right or reasonable.
the underlying principle was
Highlights the fundamental concept or doctrine on which something is based.
the starting point was
Focuses on the initial stage or origin of something.
the premise was
Highlights the assumed or presupposed idea that serves as a base for reasoning.
the ground was
Metaphorically refers to the basic reason or justification.
it stemmed from
Indicates the origin or source from which something originated.
it originated in
Focuses on the place or situation where something began.
FAQs
How can I use "the basis was" in a sentence?
Use "the basis was" to introduce the fundamental reason or foundation for a past decision, theory, or situation. For example, "The basis was a thorough review of existing literature."
What are some alternatives to "the basis was"?
You can use alternatives like "the foundation was", "the rationale was", or "the reason was" depending on the specific context.
Which is correct, "the basis was" or "the basis is"?
"The basis was" is used when referring to something in the past, while "the basis is" is used for present or general statements. The choice depends on the time frame you are discussing.
What's the difference between "the basis was" and "the basis will be"?
"The basis was" refers to a foundation that existed in the past, whereas "the basis will be" indicates a foundation that is planned or expected to exist in the future. The difference lies in the time frame.
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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested