15 questions
The past of (have)
The past of (win)
The past of (wear)
The past of (paint)
The past of (go)
The past of (write)
The past of (swim)
The past of (listen)
The past of (drink)
The negative form in the past for "bought"
The negative form of "climbed"
The negative form of "saw"
The negative form of "ate"
The negative form of "fell"
The negative form of "did"