Hello! My daughter is already 10 months old, but we haven't crawled ev…

Hello! My daughter is already 10 months old, but we haven't crawled even like a baby. She crawls only backward, most of the time she likes to sit. If needed, she can reach with her arms and continue sitting holding a toy in her hands. Children of her peers are already crawling, standing on their feet. I don't know how to teach her to crawl. Have you had similar problems?