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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
ago
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "ago" is correct and usable in written English.
It is typically used to indicate a time in the past relative to the present moment. Example: "I visited Paris three years ago."
✓ Grammatically correct
News & Media
Formal & Business
Alternative expressions(9)
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
49 human-written examples
"It's only what happened a couple of weeks ago or next week that matters.
News & Media
Forbes ranks it as the second-largest private company in the country, after Cargill, and its consistent profitability has made David and Charles Koch—who, years ago, bought out two other brothers—among the richest men in America.
News & Media
"A long time ago".
News & Media
That was three years ago".
News & Media
"That was 60 years ago".
News & Media
This is the stain on our soul that prime minister Keating so movingly evoked at Redfern 21 years ago.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
11 human-written examples
What happened four months ago is forgotten, whether that's good, bad or indifferent.
News & Media
"They gave me their word a year ago and now I want them to honour that.
News & Media
"Five years ago I stood here and said we had made history here in Brighton," Lucas said to loud cheers inside the Brighton Centre conference venue.
News & Media
Pattinson had a rather different experience with Skins than he did with ITV1 family drama Wild at Heart, which was remade for the CW Network in the US – renamed Life Is Wild – four years ago.
News & Media
The sister of Troy Davis, the man whose execution a year ago amid substantial evidence that he was innocent sparked protests across the US and the world, has vowed to keep on fighting until the death penalty is ended "one state at a time".
News & Media
Expert writing Tips
Best practice
When using "ago", ensure it clearly refers to a point in the past relative to the current time of reference. Avoid ambiguity by specifying the time period (e.g., "three years ago", not just "ago").
Common error
Avoid using "ago" with future tenses. "Ago" always refers to a completed time in the past. For example, it is incorrect to say "I will see him a week ago". Instead, say "I saw him a week ago".
Source & Trust
96%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The word "ago" functions as a postposition, indicating a duration of time prior to the present moment. This is supported by Ludwig's examples, which consistently show "ago" following a time period to specify when something occurred in the past. For instance, "ten years ago" or "a few weeks ago".
Frequent in
News & Media
70%
Formal & Business
15%
Science
5%
Less common in
Encyclopedias
3%
Wiki
3%
Reference
4%
Ludwig's WRAP-UP
In summary, "ago" is a versatile postposition used to denote a time in the past relative to the present. As Ludwig AI confirms, its grammatical function is correct, and it sees very common usage across diverse contexts like News & Media and Formal writing. When using "ago", make sure to specify a clear time period, and avoid incorrect tense pairings. Alternatives like "in the past" or "previously" can offer variety, but "ago" remains a straightforward and effective choice for expressing past time frames.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
In the past
This alternative is a more general way to refer to a time before the present.
Previously
This alternative emphasizes that something happened before the current time or situation.
Earlier
This alternative indicates that something happened at an earlier time, often in relation to another event.
In former times
This alternative is a more formal and literary way to refer to a time in the past.
Some time back
This alternative indicates an unspecified point in the past.
A while back
Similar to "some time back", this indicates a period in the past, though slightly more informal.
Before now
This alternative emphasizes that something happened at any point prior to the present.
In bygone days
This phrase refers to a more distant past, often with a sense of nostalgia.
In retrospect
This alternative emphasizes looking back on a past event with present knowledge.
Once upon a time
This alternative is typically used to begin a story or to refer to a distant and often idealized past.
FAQs
How do I use "ago" in a sentence?
Use "ago" after a period of time to indicate how far in the past something occurred. For example, "I graduated five years ago" or "The dinosaurs died out millions of years ago".
What can I say instead of "ago"?
You can use alternatives like "in the past", "previously", or "earlier" depending on the specific context.
Is it correct to say "a long time ago" or "long time ago"?
"A long time ago" is the correct and more common phrasing. The article "a" is needed for grammatical accuracy. Saying "long time ago" is grammatically incorrect and should be avoided.
What's the difference between "before" and "ago"?
"Before" is used to indicate a point in time relative to another point in time, while "ago" indicates a duration relative to the present. For example, "I had seen that movie before I read the book," but "I saw that movie five years ago".
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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
96%
Authority and reliability
4.5/5
Expert rating
Real-world application tested