Usually after “short” vowels in words of more than one syllable.
egg Hogg |
aggressive aggrieve aggro bagging befogged beggar begging bewigged bigger boggling braggart bragging bugging chugging clogging dagger debugged digger digging dragging drugging earwigged eggplant eggshell flagging flogging giggle haggard haggis hogget hugger hugging jogger jogging juggle laggard lagging leggings logging lugger lugging maggot mugging nagging niggle noggin nuggets pegging plugger plugging priggish quagga ragging rigging ringgit sagging shrugging slagging slogging slugging sluggish smuggest smuggle snigger snuggling stagger swagger swigging thuggish toggle unclogged wagging waggish wiggle zigzagged |