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