Group B verbs have different forms for the Simple Past and the Past Participle. Type the Simple Past on the left, and the Past Participle on the right.
wear
w_r_
w_r_
bear
b_r_
b_r_
swear
sw_r_
sw_r_
tear
t_r_
t_r_
If you want, after finishing the exercise, you can listen to the pronunciation of these verbs: