Here's what rhymes with perwail.
whale wail wale male fail mail sale pale sail tail tale avail jail nail rail veil gale hail shale bail vale assail bale dale pail quail hale quale bewail kale faille detail scale trail frail email stale travail curtail snail flail braille derail gunwale unveil grail wassail carrell prevail entail inhale pigtail topsail impale taffrail bobtail pellmell hightail exhale mainsail ponytail countervail foresail monorail lugsail fingernail martingale nonpareil swallowtail hangnail tattletale