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
make sure to keep
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "make sure to keep" is correct and usable in written English.
You can use it when you want to emphasize the importance of maintaining or preserving something. Example: "Before you leave the house, make sure to keep the windows closed to prevent any rain from coming in."
✓ Grammatically correct
Wiki
News & Media
Science
Alternative expressions(5)
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
60 human-written examples
I'll make sure to keep you updated.
News & Media
Make sure to keep notes on sources.
Make sure to keep away from the sea.
News & Media
Make sure to keep the cheesecloth moist as all times.
News & Media
Make sure to keep receipts of purchases.
News & Media
Make sure to keep funds separate.
News & Media
Make sure to keep taxation separate.
News & Media
Secondly, I make sure to keep fueling.
News & Media
Make sure to keep a journal handy!
News & Media
Make sure to keep your responses varied.
News & Media
Make sure to keep thighs tight.
News & Media
Expert writing Tips
Best practice
When providing instructions, use "make sure to keep" followed by a specific action to clearly communicate the importance of that action for achieving the desired outcome. For example, "When baking, make sure to keep the oven door closed to maintain the temperature."
Common error
While "make sure to keep" is acceptable in many situations, avoid overusing it in highly formal writing. Opt for alternatives like "ensure maintenance of" or "guarantee the preservation of" to maintain a professional tone.
Source & Trust
70%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "make sure to keep" functions primarily as an imperative expression, urging the listener or reader to maintain a specific state or action. As confirmed by Ludwig AI, the phrase is grammatically correct and usable across various contexts. The examples provided showcase its function in giving instructions or advice.
Frequent in
Wiki
39%
News & Media
30%
Science
12%
Less common in
Formal & Business
11%
Encyclopedias
4%
Social Media
4%
Ludwig's WRAP-UP
In summary, the phrase "make sure to keep" is a common and grammatically correct way to emphasize the importance of maintaining a certain state or action. Ludwig AI confirms its usability in various contexts, primarily in Wiki, News & Media, and Science. While versatile, it's important to consider the formality of the writing and opt for more precise alternatives in highly formal or scientific settings. When providing instructions, this phrase is particularly effective in highlighting crucial actions to achieve desired outcomes. Remember to use alternative phrasings in formal contexts and be mindful of the emphasis you wish to convey, as "make sure to keep" denotes a strong need for adherence.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
ensure you maintain
Formal alternative; uses 'ensure' for emphasis and 'maintain' as a direct synonym.
be certain to preserve
Emphasizes certainty and preservation; slightly more formal.
remember to retain
Focuses on remembering and retaining something; slightly less forceful.
don't forget to hold onto
Informal and focuses on physically or figuratively holding something.
take care to safeguard
Highlights carefulness and safeguarding; suitable for valuable items or information.
always preserve
Emphasizes consistency in preservation; suitable for rules or tradition.
guarantee the upkeep of
Formal and emphasizes guaranteeing maintenance.
see to the maintenance of
Slightly indirect, focusing on overseeing maintenance.
mind you conserve
Emphasizes to conserve; more informal and cautionary.
sustain without fail
Highlights sustaining something without failure, emphasizing consistency and reliability.
FAQs
What can I say instead of "make sure to keep"?
You can use alternatives like "ensure you maintain", "be certain to preserve", or "remember to retain" depending on the context.
How to use "make sure to keep" in a sentence?
Use "make sure to keep" to emphasize the importance of maintaining a certain state or action. For example, "When exercising, make sure to keep hydrated" or "Make sure to keep all the documents in a safe place."
Which is correct, "make sure to keep" or "ensure to keep"?
"Make sure to keep" is generally preferred in most contexts. "Ensure to keep" is less common and can sound awkward. It is better to rephrase as "ensure that you keep".
What's the difference between "make sure to keep" and "try to keep"?
"Make sure to keep" conveys a stronger emphasis on the importance of the action. "Try to keep" suggests an effort, but not necessarily a guaranteed outcome. For example, "Make sure to keep the door locked" implies a necessity, while "Try to keep the door locked" suggests an attempt.
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
70%
Authority and reliability
4.1/5
Expert rating
Real-world application tested