Помогите пожалуйста!Write the missing forms of the verbs

Eat - ate - eaten - eating 
lose - lost - lost -losing 
cost - cost - cost - costing
teach - taught - taught - teaching 
find - found - found - finding
show - showed - shown (допускается showed) - showing
run - ran - run - running
hear - heard - heard - hearing

1. Eat - ate - eaten - eating
2. Lose - lost - lost -losing
3. Cost - cost - cost - costing
4. Teach - taught - taught - teaching
5. Find - found - found - finding
6. Show - showed - shown - showing
7. Run - ran - run - running
8. Hear - heard - heard - hearing