past participle (present perfect tense) of 'see'
seen
past participle (present perfect tense) of 'be'
been
past participle (present perfect tense) of 'do'
done
past participle (present perfect tense) of 'have'
had
past participle (present perfect tense) of 'eat'
eaten
past participle (present perfect tense) of 'make'
made
past participle (present perfect tense) of 'got'
gotten
got
past participle (present perfect tense) of 'give'
given
past participle (present perfect tense) of 'come'
come
past participle (present perfect tense) of 'find'
found
past participle (present perfect tense) of 'know'
known
past participle (present perfect tense) of 'drive'
driven
past participle (present perfect tense) of 'drink'
drunk
past participle (present perfect tense) of 'choose'
chosen
past participle (present perfect tense) of 'speak'
spoken
past participle (present perfect tense) of 'sing'
sung
past participle (present perfect tense) of 'swim'
swum
past participle (present perfect tense) of 'take'
taken
past participle (present perfect tense) of 'tell'
past participle (present perfect tense) of 'write'
written
past participle (present perfect tense) of 'understand'
understood
past participle (present perfect tense) of 'ride'
ridden
past participle (present perfect tense) of 'teach'
taught
past participle (present perfect tense) of 'wear'
worn
past participle (present perfect tense) of 'hide'
hidden