Irregular Verbs

When you want to show most verbs in the past tense, you add -ed.
However, some verbs are irregular, which means that they don't follow the normal rule.

Present Tense Past Tense Past with Has, Have, Had
begin began begun
do did done
find found found
give gave given
go went gone
run ran run
see saw seen
take took taken
think thought thought
wear wore worn