"lives combined" is correct and usable in written English.
It is an expression used to refer to the total life or living experience of two or more people. For example, "The couple had celebrated 50 years of their lives combined."
"The images of Europe, of our comfortable lives, combined with easier transport, make us an obvious target.
A journalist of the highest order, Malcolm approaches her subjects with a rare combination of qualities — a respect for the unknowable, the mysterious, at the center of lives, combined with a serious effort to get closer to the truth.
*** The songs about ordinary lives – combined with Springsteen's revelatory, ecstatic live performances – built the bond with his audience that has lasted more than 40 years, and itself became the subject of an extraordinarily moving film in 2013, Springsteen & I.
"One of their favorite phrases was 'This line is worth more than all your lives combined, so don't stop it.' " Both employees attributed the pressure to increase production speed to an aggressive new operations manager focused on the bottom line.
When employees complained about unsanitary conditions, managers said, "This line is worth more than all your lives combined, so don't stop it".
The giggle Andrew Scheer is struggling to suppress in this photo is more joy than all of the other men around him have ever experienced in their adult lives, combined.
Unlike most youngsters growing up in modern cities, these boys' lives combine unusual freedom and security.
"We must be 21st century Buddhists, not just ritual faith and belief Buddhists -- and live our values in our daily lives, combining the development of modern scientific knowledge with timeless wisdom understanding.
The experiment, conducted by the Ocean Tracking Network at Dalhousie University, Nova Scotia, showed that migrating fish like eels have complex lives, combining journeys through rivers, down coasts and across open seas.
Friday Live combined entertainment with confrontational happenings in the studio, before an involved and participating audience.
The rocketing cost of living, combined with on-going difficulty first time buyers are experiencing in obtaining a mortgage in increasing the number reliant on rental accommodation.
