There are many irregular verbs in English, but they don't technically have *two* past tenses and participles. Instead, they have a unique form for each of these:
* Past Tense: The verb form used to describe an action that happened in the past (e.g., "I *ran* to the store").
* Past Participle: The form used in perfect tenses (e.g., "I have *run* five miles") and passive voice (e.g., "The race was *run* by a champion").
Here are some examples of common irregular verbs:
Verb | Past Tense | Past Participle
------- | -------- | --------
be | was/were | been
become | became | become
begin | began | begun
bite | bit | bitten
break | broke | broken
bring | brought | brought
build | built | built
buy | bought | bought
catch | caught | caught
choose | chose | chosen
come | came | come
do | did | done
draw | drew | drawn
drink | drank | drunk
drive | drove | driven
eat | ate | eaten
fall | fell | fallen
find | found | found
fly | flew | flown
forget | forgot | forgotten
get | got | gotten (or got)
give | gave | given
go | went | gone
grow | grew | grown
have | had | had
hear | heard | heard
hide | hid | hidden
hit | hit | hit
hold | held | held
know | knew | known
lead | led | led
leave | left | left
lend | lent | lent
let | let | let
lie | lay | lain
lose | lost | lost
make | made | made
mean | meant | meant
meet | met | met
pay | paid | paid
put | put | put
read | read | read
ride | rode | ridden
ring | rang | rung
rise | rose | risen
run | ran | run
say | said | said
see | saw | seen
sell | sold | sold
send | sent | sent
set | set | set
shake | shook | shaken
shine | shone | shone
shoot | shot | shot
show | showed | shown
shrink | shrank | shrunk
sing | sang | sung
sink | sank | sunk
sit | sat | sat
sleep | slept | slept
speak | spoke | spoken
spend | spent | spent
stand | stood | stood
steal | stole | stolen
stick | stuck | stuck
strike | struck | struck
swim | swam | swum
take | took | taken
teach | taught | taught
tear | tore | torn
tell | told | told
think | thought | thought
throw | threw | thrown
understand | understood | understood
wake | woke | woken
wear | wore | worn
win | won | won
write | wrote | written
This is not an exhaustive list, but it covers many of the most common irregular verbs. Remember that these verbs have a distinct past tense and past participle, not two of each.