bit - bet - beat

bean - Ben - bin

pin - pen - peen

read - red - rid

dill - dell - deal

seat - set - sit

rid - red - read

seek - seck - sick

pit - pet - Pete

peek - peck - pick

mitt - met - meat

need - Ned - nid

lick - leck - leak

peat - pet - pit

riff - ref - reef

beef - beff - Biff

pick - peck - peek

reed - red - rid

fid - fed - feed

weed - wed - wid

liss - lass - lease

peel – pell - pill