" Given that these are all pretty common phrases currently, I wanted to see whether or not they experienced often been so, and regardless of whether any transform from the relative frequency of "is/are free of" and "is/are free from" experienced happened. The example shown above that appears to me https://docs.google.com/spreadsheets/d/e/2PACX-1vThQYloKZWldp-SOKX4OjBXwRfrgWYaDRrLVem32lfKHmI8mCJiHgR2_0HftTtEvIaeLQv1auoUjdAn/pubhtml