Do amphibians breathe with lungs or gill?

When amphibians are young, such as tadpoles, they breath using gills and spiracle. When they metamorphose and reach their adult state they start to breathe air out of lungs.

Adult amphibians respire (take in oxygen and let out carbon dioxide) through the skin. They also have other organs of respiration, including gills in the young of all species and the adults of some species, and lungs in the adults of almost all species. Some amphibians can also respire through the mucous membranes of the mouth. Extra note: I have not found evidence of any animal that has both lungs and gills at the same time.