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
presumably so
Grammar usage guide and real-world examplesUSAGE SUMMARY
"presumably so" is a correct and usable phrase in written English.
It is typically used to indicate that something is likely or assumed to be true. You can use it in various situations, such as when making a logical conclusion based on evidence or when expressing a guess or assumption. Here is an example: "I saw Sarah leave the office with a suitcase. Presumably so, she must be going on a business trip."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
it is reasonable to assume
I expect so
it seems that way
it would follow that
presumably
superficially so
it can be supposed that
I guess so
the assumption is
one can assume that
that seems to be the case
outwardly so
It seems so
apparently so
it seems logical that
purportedly so
it would seem so
visibly so
it stands to reason that
it seems so
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
59 human-written examples
Of course you would, and, presumably, so did Larry.
News & Media
(Claudius is buck naked, presumably so we can understand why Gertrude would marry him).
News & Media
The powerhouses are stockpiling bodies, presumably so other teams cannot get at them.
News & Media
She holds her hands over her ears, presumably so as not to hear his excuses.
News & Media
Presumably so when you tell him, "Hey, I'm up here," he's actually looking up there.
News & Media
Presumably, so have their listeners, some of whom are closing in on 50.
News & Media
Presumably so they can make love in Italian, after their enormous fairy-lit bath.
News & Media
Presumably so it can get a firsthand view of the horrors wrought by mass tourism.
News & Media
Often it was mostly there (or at least presumably so) but the tip would be gone.
News & Media
Presumably so they can come back and tell us how bad things are.
News & Media
They asked only that I return the dead bulb, presumably so they could determine why it failed.
News & Media
Expert writing Tips
Best practice
Use "presumably so" when you want to indicate that something is likely true based on available evidence or common sense. It is a concise way to express an assumption without stating it as an absolute fact.
Common error
Avoid using "presumably so" when you have concrete evidence or direct knowledge. This phrase is best suited for situations where you are making an educated guess or drawing a logical conclusion, not stating a confirmed fact.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "presumably so" is as an adverbial phrase modifying a clause, sentence, or verb. It indicates that a statement is likely true based on inference. As confirmed by Ludwig AI, the phrase adds a nuance of assumption or probability to the assertion.
Frequent in
News & Media
75%
Science
15%
Wiki
5%
Less common in
Formal & Business
2%
Reference
1%
Academia
2%
Ludwig's WRAP-UP
In summary, the phrase "presumably so" is a grammatically correct and frequently used adverbial phrase that indicates an assumption or likely conclusion based on available information. Ludwig AI confirms its common usage. It's particularly prevalent in News & Media and Science contexts and serves to soften statements by acknowledging a degree of uncertainty. When using "presumably so", ensure that you are expressing a logical deduction rather than stating a confirmed fact.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
presumably therefore
Adds a slightly stronger emphasis on the logical consequence.
it is reasonable to assume
A more formal and explicit way of stating an assumption.
it can be inferred that
Highlights the process of deduction and logical reasoning.
one can assume that
Similar to the previous, but with a slightly more personal tone.
it is likely that
Focuses on the probability of something being true.
it stands to reason that
Suggests that something is logical and expected.
it seems logical that
Emphasizes the logical appearance of a conclusion.
it would follow that
Indicates a direct consequence or result.
it can be supposed that
Introduces a degree of uncertainty or speculation.
the assumption is
Highlights the underlying assumption being made.
FAQs
How can I use "presumably so" in a sentence?
"Presumably so" is used to indicate an assumption or likelihood based on the available information. For example: "He left early, presumably so he could avoid traffic."
What alternatives can I use instead of "presumably so"?
Alternatives to "presumably so" include phrases like "it is reasonable to assume", "it is likely that", or "one can assume that". The best choice depends on the specific context and nuance you wish to convey.
Is "presumably so" formal or informal?
"Presumably so" is generally considered suitable for both formal and informal contexts, but it is more commonly found in written communication. Consider alternatives for very formal settings, as mentioned above.
What is the difference between "presumably so" and "apparently so"?
"Presumably so" indicates an assumption based on reasoning, while "apparently so" suggests that something is true based on outward appearances or secondhand information. "Presumably" is based on deduction, "apparently" on observation.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested