1. Walk: walked, walked
2. Jump: jumped, jumped
3. Talk: talked, talked
4. Play: played, played
5. Sing: sang, sung
6. Dance: danced, danced
7. Cook: cooked, cooked
8. Clean: cleaned, cleaned
9. Study: studied, studied
10. Work: worked, worked
Remember, regular verbs form their past tense and past participle by adding "-ed" to the base form.