| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] built by | 168 |
|
| 2 | [was/were] by [adj] | 58 |
|
| 3 | built by [adj] | 43 |
|
| 4 | [was/were] built [adj] | 12 |
|
