Depending upon the dialect, vowels could be subject matter to varied mergers ahead of /l/, to make sure that e.g. fill /ˈfɪl/ and come to feel /ˈfiːl/ or pull /ˈpʊl/ and pool /ˈpuːl/ is probably not distinguished. For more comprehensive information on dialect variants, you could possibly prefer to see https://nielsonl011ucs5.actoblog.com/profile