gobbling

grabbling

grumbling

grumblingly

hobbling

humbling

humblingly

jumbling

kibbling

marbling

marblings

misassembling

mumbling

mumblings

nibbling

nobbling

outfabling

outfumbling

pebbling

psychobabbling

quibbling

rabbling

rambling

ramblingly

reassembling

redoubling

resembling

restabling

rubbling

rumbling

rumblings

scabbling

scrabbling

scrambling

scribbling

scumbling

shambling

sibling

siblings

squabbling

stabling

stablings

stumbling

stumblingly

sublingual

syllabling

tabling

tablings

trebling

trembling