think - thought - thought
drink - drank - drunk
sit - sat- sat
lose - lost - lost
have - had - had
hear - heard - heard
sleep - slept - slept
find - found - found
say - said - said
fly - flew - flown
read - read - read
give - gave - given
tell - told - told
take - took - taken
understand - understood - understood
come - came - come
get - got - got
wear - wore - worn
forget - forgot - forgotten