With a map in hand, Dr. Gustav is just a few clues away from discovering the Luminous Kelp Blob! All he needs is to pick the correct irregular past tense verbs. Can you help him?

Turning verbs into past tense is usually simple: add -ed, like walk and walked. However, some verbs don't follow this rule, and these are called irregular past tense verbs. Finding the right ones in this activity will test your skills and help Dr. Gustav achieve his dream!