Here's what rhymes with regulain.
rain reign ln lane lain rein main brain gain pain chain grain plain plane train attain vain vein cane drain slain sane crane fain pane bane mane tain vane wane arcane deign feign urbane arraign thane wain obtain remain strain retain refrain stain regain terrain aeroplane pertain ordain twain germane inane moraine overlain skein romaine sprain swain urethane retrain murrain reattain contain explain campaign domain sustain ascertain complain entertain insane champagne cocaine humane profane restrain abstain detain hurricane mundane butane cellophane certaine humaine appertain chicane ingrain wholegrain reexplain maintain disdain constrain sugarcane halothane monoplane legerdemain preordain inhumane polyurethane coxswain windowpane hydroplane foreordain demimondaine Words that almost rhyme with regulain
lame same came name claim game frame blame fame flame shame tame dame acclaim aflame maim reclaim rename became proclaim exclaim overcame inflame declaim defame ballgame quitclaim forename filename disclaim selfsame counterclaim aspartame