"times used" is correct and usable in written English.
You can use it to refer to the frequency or number of times something is used or has been used. For example: "I have used this form three times already".
The Times used to take the "Mr".
The Times used to favor due process.
Bad times used to be good for the left.
A combina is a clever dirty deal — a word at times used in admiration, at times used in disdain.
The Times used it on the front page only in its first edition.
"In our society, we have, from cave-man times, used animals as part of our economy.
He was burned in effigy before the Times used "the letters C-I-A".
It was the first time The Times used the term that is universally accepted today.
In doubles, there are two runs in one day, with the compiled times used to decide the winner.
After her great triumph in 1957, The New York Times used words like "lithe" and "muscular" and "saunters".
The Times used the words "defiantly" and "emboldened," even as it expressed doubt about what he might actually get done.
