"hadst on carpet" can be replaced with several synonyms such as footprints on the floor, trampled carpet, rug imprints, tread marks, smushed pile, pressed fibers, worn down carpet, track marks on the carpet, and indented carpet. All of these phrases indicate that the carpet has been walked on. It is important to use different synonyms in writing to add variety and keep the content engaging. Using the same word repeatedly can make writing tedious and less effective. By switching out "hadst on carpet" with different synonyms, a writer is better able to paint a detailed picture for the reader and enhance their understanding of the text.