Base Form	Simple Past	Past Participle
be	was/were	been
become	became	become
begin	began	begun
bring	brought	brought
break	broke	broken
buy	bought	bought
catch	caught	caught
choose	chose	chosen
come	came	come
draw	drew	drawn
drink	drank	drunk
drive	drove	driven
feel	felt	felt
find	found	found
fly	flew	flown
forget	forgot	forgotten
get	got	got/gotten
give	gave	given
go	went	gone
grow	grew	grown
have	had	had
hear	heard	heard
hold	held	held
keep	kept	kept
know	knew	known
lead	led	led
leave	left	left
lose	lost	lost
make	made	made
meet	met	met
pay	paid	paid
read	read	read
run	ran	run
say	said	said
see	saw	seen
send	sent	sent
sing	sang	sung
sit	sat	sat
shake	shook	shaken
show	showed	shown
sleep	slept	slept
speak	spoke	spoken
stand	stood	stood
take	took	taken
tell	told	told
teach	taught	taught
think	thought	thought
understand	understood	understood
wear	wore	worn
write	wrote	written