infinitive past simple past part.

be was/were been

become became become

begin began begun

break broke broken

build built built

buy bought bought

can could been able to

catch caught caught

come came come

cost cost cost

do did done

drink drank drunk

eat ate eaten

fall fell fallen

feel felt felt

fight fought fought

find found found

fly flew flown

get got got

get up got up got up

give gave given

go went gone/been

have had had

hide hid hidden

hit hit hit

know knew know

learn learned learned

leave left left

lend lent lent

lose lost lost

make made made

meet met met

put put put

read read read

ride rode ridden

run ran run

say said said

see saw seen

sell sold sold

send sent sent

set set set

sit sat sat

sleep slept slept

speak spoke spoken

spend spent spent

swim swam swum

take took taken

teach taught taught

tell told told

think thought thought

wear wore worn

write wrote written

ser

començar

convertir-se

trencar

construir

comprar

poder

agafar

venir

costar

fer

beure

menjar

caure

sentir

lluitar

trobar

volar

arribar

aixecar-se

donar

anar

tenir

amagar

colpegar

saber

aprendre

deixar

prestar

perdre

fer

quedar

posar

llegir

passejar

correr

dir

veure

vendre

enviar

col·locar

sentar

dormir

parlar

gastar

nadar

prendre

ensenyar

dir

pensar

portar

escriure