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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
if or whether
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "if or whether" is not standard in written English. It is better to use "whether" alone in most contexts. Example: "I am unsure whether to attend the meeting." Alternative expressions include "if" and "whether or not."
News & Media
Science
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
2 human-written examples
(He said he chose the name, a Greek preposition that means "if" or "whether," to convey that sense of versatility).
News & Media
Rather, the onus for determining if or whether a DS is unsafe is on the FDA; for the agency to recall a supplement, it must obtain sufficient evidence that the specific supplement in question is unsafe and poses a "significant or unreasonable risk of illness or injury" [ 8, 9].
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
HuffPost asked if he meant "how" or "whether".
News & Media
This survey shows that neurologists do not understand if, or disagree whether, the criterion BD fulfils a concept of death.
Science
As indicated before, some are not sure what would explain this fact, if anything, or whether it's something we should even aspire to explain.
Science
So, again, the clock keeps running on if, when, or whether local prosecutors will take action.
News & Media
For instance a reconstruction experiment to show how efficiently GefE- cells are selected; an idea of how complex the REMI library actually was (if possible) or whether repeat selections give different genes.
Science
It won't if he stays or whether he goes," Coleman said.
News & Media
The other is whether substancehood require some extra component beyond properties, (and, if so, what?) or whether a 'bundle of properties' theory of substance is adequate.
Science
In the examples the company provided, those questions might be something like whether the restaurant has outdoor seating, or if it delivers, or whether it takes credit cards or only cash.
News & Media
Measures of those who were able to stop or ran the yellow light, speed over the span of the intersection, perception response time, and eye movements were analyzed to determine if performance improved or whether undesirable adaptive behaviours occurred.
Expert writing Tips
Best practice
Reserve "if or whether" for contexts where you are explicitly discussing the linguistics of these words or when you want to heavily emphasize a state of total indecision.
Common error
Writers sometimes use "if or whether" thinking it adds emphasis, but it often makes the sentence clunky. For example, instead of saying 'It is unclear if or whether the plan will work', simply write 'It is unclear "whether" the plan will work'.
Source & Trust
92%
Authority and reliability
3.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "if or whether" serves as a compound subordinator used to introduce noun clauses or indirect questions. In the examples provided by Ludwig, it often functions to emphasize a state of comprehensive uncertainty or to present a choice between two synonymous conjunctions for the sake of clarity in definition.
Frequent in
News & Media
45%
Science
35%
Academia
20%
Less common in
Social Media
5%
Wiki
10%
Formal & Business
15%
Ludwig's WRAP-UP
In conclusion, while "if or whether" appears in reputable sources like The New York Times and various scientific journals, it is generally viewed by Ludwig AI as a redundant construction. Most sentences are improved by choosing one or the other—typically "whether" for formal indirect questions and "if" for conditional statements. Using them together should be limited to specific contexts where the writer intends to stress the exhaustive nature of an inquiry or is discussing the terms themselves.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
whether
Standard and more concise alternative for formal contexts.
whether or not
Emphasizes the binary nature of the choice or condition.
whether... or
Used when explicitly listing two or more alternatives.
if
Less formal but widely used for conditional or indirect questions.
as to whether
Adds a slightly more formal prepositional layer to the inquiry.
regardless of whether
Indicates that the outcome is independent of the condition.
depending on whether
Specifically relates a subsequent action to the outcome of the choice.
concerning whether
Shifts the focus to the topic being questioned.
doubting whether
Expresses the specific sentiment of uncertainty.
if and when
Combines conditionality with the timing of an event.
FAQs
Is "if or whether" grammatically correct?
It is not technically incorrect, but it is considered redundant. According to Ludwig AI, it is better to use "whether" alone in most contexts to maintain clarity and conciseness.
When should I use "if" instead of "whether"?
Use "if" for conditional sentences (e.g., 'If it rains, we stay home'). Use "whether" when presenting two or more alternatives or in indirect questions (e.g., 'I don't know whether to go').
What is a more concise way to say "if or whether"?
Why do some writers use "if or whether" together?
It often appears when a writer wants to underscore a sense of thoroughness in an investigation or when the distinction between the two words is being highlighted, as seen in some examples from The New York Times.
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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
92%
Authority and reliability
3.8/5
Expert rating
Real-world application tested