The phrase "actually lost one" is correct and usable in written English.
It can be used when referring to the loss of a specific item or person, often to emphasize the reality of the situation.
Example: "I thought I had all my keys, but I actually lost one during the move."
Alternatives: "truly misplaced one" or "really lost one".
Republicans actually lost one seat in the House when President Bush was elected in 2000.
So is the fact that the Chinese divers actually lost one of the eight events in Beijing.
But its forecasts of a doubling of its seats in the Dail to ten crashed: the party actually lost one of its five seats.
Although turnout in Virginia was low and Mr. Romney won all but three delegates there (he actually lost one Congressional district to Mr. Paul), this result was in some ways the most negative sign for Mr. Romney on Super Tuesday, since it suggested the presence of an "anybody but Romney" vote.
In the Strong category, Obama has actually only lost one vote from before the convention.
Even in the House, where seats were picked up (we don't know for sure how many yet), it looks like the total will be on the low end of the expected range, and several Democratic incumbents actually lost, including one in Louisiana who earlier this year won a special election to gain the seat in a predominantly Republican district.
"Our hearts continue to go out to those families who have been affected, who have actually lost loved ones," Obama said.
Dave's like, well actually, on that, no offence, but Lynton said you just lost one?
And of all the time I was in hospital, which was close on five weeks, I only actually lost my cool one day.
What's more, he said, there was no effort to ensure that those who voted had actually lost a loved one in the crash.
Therefore, we conclude that the 17 cyanobacterial genomes that do not encode a crp gene actually lost their original ones during the course of evolution to adapt to their respective environments.
