SER O ESTAR: be - ... - been
was / were
BATIR: beat - ... - beaten
beat
LLEGAR A SER: become - became - ...
become
MORDER: ... - bit - bitten
bite
SOPLAR: blow - ... - blown
blew
CONDUCIR: drive - ... - driven
drove
HACER: ... - did - done
do
ROMPER: break - broke - ...
broken
CONSTRUIR: ... - built - built
build
COMPRAR: buy - ... - bought
bought
ESCOGER: choose - chose - ...
chosen
VENIR: come - ... - come
came
