| A | B |
| They found the lost dog. | The lost dog was found. |
| They are arresting the criminal. | The criminal is being arrested. |
| They grew tomatoes. | Tomatoes were grown. |
| They will grow tomatoes | Tomatoes will be grown. |
| They don't allow smoking. | Smoking is not allowed. |
| They didn't allow smoking. | Smoking wasn't allowed. |
| They are growing tomatoes. | Tomatoes are being grown. |
| She took the seat. | The seat was taken. |
| They built the theater in 2009. | The theater was built in 2009. |
| They are building the theater in 2009. | The theater is being built in 2009. |
| They will lay off 2000 workers. | Two thousand workers will be laid off. |
| They have laid off 2000 workers. | Two thousand workers have been laid off. |
| They pay the man every Friday. | The man is paid every Friday. |
| They will collect the garbage tomorrow. | The garbage will be collected tomorrow. |
| The teacher will give a test tomorrow. | A test will be given tomorrow. |
| The teacher is going to give a test tomorrow. | A test is going to be given tomorrow. |
| They shot many soldiers in Iraq. | Many soldiers were shot in Iraq. |
| They have shot many soldiers in Iraq. | Many soldiers have been shot in Iraq. |
| They make tequila from agave. | Tequila is made from agave. |
| They are making tequila from agave. | Tequila is being made from agave. |