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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
used to do
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "used to do" is correct and usable in written English.
You can use the phrase when you want to describe past habits or events that no longer occur. For example: "I used to go to the beach every weekend when I was younger."
✓ Grammatically correct
News & Media
Alternative expressions(2)
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 used to do it myself.
News & Media
I never used to do that.
News & Media
I used to do stand-up comedy.
News & Media
That thing we used to do.
News & Media
(He used to do this onstage too).
News & Media
Henry Rono used to do it.
News & Media
Did she used to do something else?
News & Media
I used to do some acting.
News & Media
Indeed, we used to do just that.
News & Media
Exactly like Mom used to do.
News & Media
"This is what Saddam used to do".
News & Media
Expert writing Tips
Best practice
Use "used to do" to clearly indicate a past habit or state that is no longer true in the present. This helps avoid ambiguity and provides a clear temporal context for your writing.
Common error
Avoid confusing "used to do" (past habit) with "use to do" (incorrect) or "be used to doing" (being accustomed to). For example, "I used to do yoga" (correct), not "I use to do yoga" (incorrect) or "I am used to doing yoga" (different meaning).
Source & Trust
91%
Authority and reliability
4.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "used to do" functions as a past habit marker, indicating an action or state that was true in the past but is no longer true in the present. Ludwig AI confirms its correct usage.
Frequent in
News & Media
100%
Less common in
Science
0%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "used to do" is a grammatically correct and very common way to express a past habit or state that no longer exists. As verified by Ludwig AI, it is suitable for a wide range of contexts, particularly in news and media. When writing, ensure you're not confusing it with "be used to doing", which expresses being accustomed to something. For alternatives, consider "formerly did" or "did in the past" to convey similar meanings with slightly different emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
formerly did
Emphasizes a previous action or state that has been discontinued.
used to perform
More formal alternative, often used when discussing tasks or duties.
did in the past
A more direct and literal way of stating a past action, lacking the nuance of habit.
habitually did
Emphasizes the habitual nature of the past action.
would do
Implies a repeated action in the past, similar to "used to do" but can also suggest a hypothetical situation.
practiced doing
Implies a regular or professional engagement in an activity.
once did
Highlights a single instance of an action in the past, rather than a habitual one.
at one time did
Similar to "once did", but can also imply a longer period of time in the past.
in the old days did
Evokes a sense of nostalgia or a time long past.
in earlier times did
Similar to "in the old days did", but with a slightly more formal tone.
FAQs
How can I use "used to do" in a sentence?
Use "used to do" to describe something you regularly did in the past but no longer do. For example, "I used to do volunteer work every Saturday."
What's a good alternative to "used to do"?
Depending on the context, you could use "formerly did" or "did in the past" as alternatives to "used to do".
Is it correct to say "use to do" instead of "used to do"?
No, "use to do" is grammatically incorrect. The correct form to express a past habit is "used to do". The "d" is essential.
What is the difference between "used to do" and "be used to doing"?
"Used to do" describes a past habit, while "be used to doing" means being accustomed to something. For example, "I used to do karate" (past habit), versus "I am used to doing karate" (I am accustomed to it).
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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
91%
Authority and reliability
4.8/5
Expert rating
Real-world application tested