Here is the sentence:
Miguel bursted out laughing when he saw that Rey, his ferocious Chihuahua, had bitten the seat of Julio's jeans and hung on as Julio danced around the kitchen, trying to shake off the little dog.
The first verb, bursted, is incorrect. As you know, you cannot add an ed to the end of the simple past of this verb.
The chart below shows the correct forms.
|Verb||Simple Present||Simple Past||Past Participle|