| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were built [prep] the | 113 |
|
| 2 | were built in the | 29 |
|
| 3 | were built on the | 13 |
|
| 4 | were built by the | 11 |
|
| 5 | were built into the | 8 |
|
| 6 | were built for the | 8 |
|
| 7 | were built at the | 7 |
|
