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
each of both
Grammar usage guide and real-world examplesUSAGE SUMMARY
'each of both' is not a correct phrase in written English.
A correct phrase you could use would be 'both of them' or 'all of them' instead. For example: "I read through all of the emails, and both of them required a response."
⚠ May contain grammatical issues
Science
News & Media
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
56 human-written examples
One hundred microliters of undiluted (or normalized) cMAb supernatant was added to each well, including 100 µl each of both the positive (cMAb CK3) and negative (normal human serum, Sigma) controls at 1∶10 dilutions in PBS containing 1% BSA in 1×PBS.
Science
A Banamex-Bancomer merger would have given him and his colleagues headaches, since the combined bank would have had some 40% of Mexican deposits and nearly 70% each of both mortgages and consumer loans.
News & Media
Each of both lines in each graph corresponds to the same partition of the test set.
Science
Then, PEDOT nanofilms were selectively grown on the each of both monolayer-patterned areas via the vapor phase polymerization method.
In this paper, a hybrid genetic local search algorithm is proposed to solve this problem with each of both criteria.
The optimised formulation with 6.5 mg each of both plasticizer and cryoprotectant was loaded with bovine serum albumin and lyophilised with or without annealing.
There were also three patients with trichiasis and two with entropion in group I, and one each of both complications in group II.
Human-verified similar examples from authoritative sources
Similar Expressions
4 human-written examples
Aren't we all creators of ourselves, each of us both Pygmalion and Galatea?
News & Media
Make 3 or 4 neat slashes on each side of both fish, cutting into them but not down as far as the bones.
News & Media
Solutions containing 5 wt% of each one of both linear polymers exhibited a double phase separation.
Science
A wide score range was observed for each section of both tests.
Science
Expert writing Tips
Best practice
Avoid using "each of both" in formal writing. Opt for clearer and grammatically correct alternatives like "both", "each of the two", or "both of the".
Common error
Instead of using the awkward phrase "each of both", simplify your sentence by directly stating "both" or "each of the two" for better clarity and grammatical accuracy.
Source & Trust
85%
Authority and reliability
2.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "each of both" functions as a quantifier, attempting to specify that something applies individually to two items. However, as Ludwig AI indicates, this phrasing is generally considered grammatically incorrect. It is attempting to express a distributive enumeration, but does so in a non-standard way.
Frequent in
Science
70%
News & Media
20%
Formal & Business
10%
Less common in
Wiki
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "each of both" aims to convey individual application to two items, but it is generally considered grammatically incorrect. Ludwig AI confirms this, suggesting alternatives like "both" or "each of the two". While appearing in some scientific and news contexts, its infrequent and questionable usage suggests avoiding it in formal writing. Clearer and more grammatically sound alternatives ensure effective communication. The analyzed examples indicate that while the intent is often understandable, the expression lacks the precision expected in formal English.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
both
Simplifies the phrase to its core meaning, focusing on the duality.
each of the two
Provides a grammatically correct alternative, specifying the quantity.
both of the
Similar to "each of the two", emphasizing the pair.
each one
Focuses on individuality within the group of two.
every one of the two
More emphatic, highlighting the individual consideration of each item.
respectively
Implies a one-to-one correspondence, suitable when linking two sets of items.
for each
Highlights the action or characteristic that applies to each item individually.
individually for both
Stresses the separate treatment of both entities.
for either
Indicates a choice or option pertaining to both.
one by one for both
Emphasizes a sequential approach to each item.
FAQs
What's a more correct way to say "each of both"?
Instead of "each of both", use simpler and grammatically correct alternatives such as "both" or "each of the two".
How can I use "both" in place of "each of both"?
When referring to two items, you can directly use "both" followed by the items. For example, instead of "each of both options", say "both options".
Is "each of both" grammatically correct?
No, "each of both" is generally considered grammatically incorrect. It's better to use phrases like "both" or "each of the two" for clarity and correctness.
When should I use "each of the two" instead of "each of both"?
Use "each of the two" when you want to emphasize the individual aspect of two distinct items, providing a more formal and grammatically sound alternative to "each of both".
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
85%
Authority and reliability
2.4/5
Expert rating
Real-world application tested