The past of the regular verbs ( - ed )

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-ed = / d / sonora + -ed	-ed = / t / sorda + -ed	-ed = / id / -t / -d
arrive - arrived	watch - watched	rent - rented
change - changed	pack - packed	land - landed
call - called	type - typed	wait - waited
marry - married	work - worked	start - started
die - died	like - liked	hate - hated
seem - seemed	wash - washed	need - needed
beg - begged	hope - hoped	treat - treated
open - opened	cook - cooked	depend - depended
play - played	stop - stopped	paint - painted
live - lived	finish-finished	assist - assisted
agree - agreed	laugh - laughed	intend - intended
/z / please - pleased	wish - wished	record - recorded
move - moved	kiss - kissed	collect - collected
frighten-frightened	ask - asked	want - wanted
allow - allowed	push - pushed	need - needed
join - joined	help - helped	visit - visited
stay - stayed	drop - dropped	waste - wasted
study - studied	walk - walked	invite - invited
smile - smiled	pass - passed	suggest-suggested
save - saved	produce-produced	arrest - arrested
love - loved	crash - crashed	transport - transported
rain - rained	jump - jumped	celebrate - celebrated
climb - climbed	introduced	decorate- decorated
rob - robbed	smoke - smoked	prohibit - prohibited
rub - rubber	wrap - wrapped	add - added
breathe-breathed	trap - trapped
seem - seemed	reach - reached
dry - dried	sunbathe- sunbathed
use - used
discovered
worry - worried
destroy - destroyed
survive - survived
travel - travelled
enjoy - enjoyed
order - ordered
arrange - arranged
deliver - delivered
receive - received
sew - sewed - sewn
offer - offered

more info: _ http://www.telefonica.net/web2/eseducativa/phonetics/pphonetic3past.html