| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was built at the | 23 |
|
| 2 | been built at the | 10 |
|
| 3 | be built at the | 10 |
|
| 4 | were built at the | 7 |
|
| 5 | being built at the | 5 |
|
