the common irregular verbs
to speak spoke spoken
to meet met met
to become bacame become
to come came come
to begin began begun
to break broke broken
to understand understood understood
to go went gone
to take took taken
to tell told told
to say said said
to think thought thought
to spend spent spent
to teach taught taught
to sleep slept slept
to buy bought bought
to sell sold sold
to send sent sent
to see saw seen
to make made made
to lose lost lost
to know knew known
to give gave given
to leave left left
to forget forgot forgotten
to get got got we can say gotten both of them are correct
to find found found
to drive drove driven
to choose chose chosen
so these are the most common and you have to learn irregular verbs by heart