Here's what rhymes with congai.
guy chi quae kai by my high why die lie thy y buy cry sky tie vi hi shy sigh bi bye dye fi hy nigh pi pie thai thigh vie dei ly psi rye ty wir awry hai lye mai muy nai wry cy fy lai luy mei sy tai thei wai phi dry try fly spy fry ply sly pry tri trie pri untie sty aquae bonsai amebae stye slier apply deny imply nearby rely comply nuclei defy goodbye belie decry amoebae codify overlie ossify spry turfy lanai scurfy shanghai banzais overbuy supply reply thereby occupy whereby hereby modify qualify alkali glorify notify quantify underlie alibi magnify nullify samurai unify pupae termini descry edify mollify ramify deify retry blowfly horrify overfly barfly mummify drachmai ripply clarify classify signify verify certify gratify purify amplify fortify pacify ratify rectify standby falsify lullaby terrify typify crucify dignify liquefy mortify personify vilify firefly mystify triply vivify calcify misapply reunify stupefy cumuli liquify scarify versify dandify yuppify identify justify satisfy stimuli multiply specify simplify testify butterfly alveoli beautify oversupply resupply acidify dragonfly ultrahigh emulsify petrify prettify vitrify beatify gentrify speechify exemplify intensify diversify disqualify indemnify solidify objectify demystify detoxify electrify preoccupy stratify stultify reclassify revivify declassify hyperbolae refortify syllabify solemnify dissatisfy oversimplify misidentify transmogrify