o-a-o
to become
became become
to let
let let
to feel
felt felt
to see
saw seen
to come
came come
to read
read read
got got
to be
was/were been
to run
ran run
to cut
cut cut
to meet
met met
to take
took taken
to sing
sang sung
to put
put put
to teach
taught taught
to write
wrote written