| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] set up [prep] | 240 |
|
| 2 | had [been] set up | 140 |
|
| 3 | had [been] set [prep] | 67 |
|
| 4 | had [been] up [prep] | 50 |
|
| 5 | had set up [prep] | 23 |
|
