1. to wash- washing, washed
6. to write – writing, wrote
2. to buy – buying, bought
7. to demonstrate – demonstrating, demonstrated
3. to sell – selling, sold
8. to show – showing, showed
4. to throw – throwing, thrown
9. to translate – translating, translated
5. to develop – developing, developed
10. to teach – teaching, taught
1. to wash- washing, washed
6. to write – writing, wrote
2. to buy – buying, bought
7. to demonstrate – demonstrating, demonstrated
3. to sell – selling, sold
8. to show – showing, showed
4. to throw – throwing, thrown
9. to translate – translating, translated
5. to develop – developing, developed
10. to teach – teaching, taught