The phrase "ago has worked" is not correct and usable in written English.
It seems to be a combination of two different concepts that do not fit together grammatically.
Example: "Three years ago, he has worked at that company." (This should be corrected to "Three years ago, he worked at that company.")
Alternatives: "has been working" or "worked previously".
The artist, who first showed Photo Realist canvases at this gallery more than 30 years ago, has worked through a range of styles, from figurative to abstract to his present Expressionist mode.
Bandemer, a 43-year-old mathematician who did her PhD 16 years ago, has worked since then on temporary research grants in the planning and analysis of research projects in medicine.
Now, the president has declared that the short-term "surge" of 30,000 troops he authorized 18 months ago has worked in achieving limited goals, and it's time to move on.
I wish the legislation passed three years ago had worked to sufficiently increase vaccination rates.
George explained that his father had started the business five years ago, having worked for other cheese companies since he was a teen-ager.
The New York native, who moved to San Francisco a few years ago, had worked previously for Facebook and now runs an art studio in his new city.
The owner is Jeffrey Loria, not John Henry, and the staff, while significantly downsized, is not the people who had been Marlins employees but people who until a few weeks ago had worked for the Montreal Expos.
Simmons, who years ago had worked for the cable channel NY1, successfully planted a report on the next morning's news, and the doggy-day-care owners at Spot drove out to Queens to assist in placing flyers on car windshields and telephone poles along Northern Boulevard.
Evidently sensitive to how lower troop levels might be seen — by enemies abroad and critics at home — he emphasized in his address that early drawdowns were now possible only because the strategy of sending more troops to Iraq eight months ago had worked.
A regimental commander in the army, only a few decades ago, had worked his way through all the jobs occupied now by his subordinates: platoon commander, company commander, battalion commander.
Although the conviction was overturned almost 30 years ago, Mr. Fisher has worked ever since to obtain compensation for his years in prison.
