STINK
STANK - STUNK - STINKING
SWIM
SWAM - SWUM - SWIMMING
BRING
BROUGHT - BROUGHT - BRINGING
GROW
GREW - GROWN - GROWING
BLOW
BLEW - BLOWN - BLOWING
KNOW
KNEW - KNOWN - -----
SHRINK
SHRANK - SHRUNK - SHRINKING
THINK
THOUGHT - THOUGHT - THINKING
RUN
RAN - RUN - RUNNING
RING
RANG - RUNG - RINGING
TEACH
TAUGHT - TAUGHT - TEACHING
SINK
SANK - SUNK - SINKING
BUY
BOUGHT - BOUGHT - BUYING
SPRING
SPRANG - SPRUNG - SPRINGING
CATCH
CAUGHT - CAUGHT - CATCHING
SEEK
SOUGHT - SOUGHT - SEEKING
FIGHT
FOUGHT - FOUGHT - FIGHTING
DRINK
DRANK - DRUNK - DRINKING
BEGIN
BEGAN - BEGUN - BEGINNING
SING
SANG - SUNG - SINGING