B, T - PAST SIMPLE
BE
WAS, WERE
SPEAK
SPOKE
COME - PAST SIMPLE
CAME
BE
BEEN
SPEAK
SPOKEN
TAKE
TOOK
SEE
SAW
WIN - PAST TENSE
WON
TAKE
TAKEN
SEE
SEEN
BUY
BOUGHT
SLEEP
SLEPT
GO - PRESENT PERFECT
GONE
BUY
BOUGHT
SLEEP
SLEPT
TEACH
TAUGHT
SAY
SAID
HAVE - PRESENT PERFECT
HAD
TEACH
TAUGHT
SAY
SAID
TELL
TOLD
SEND
SENT
EAT - PRESENT PERFECT
EATEN
TELL
TOLD
SEND
SENT