| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which had [be] establish | 33 |
|
| 2 | which had be establish | 33 |
|
| 3 | which had been establish | 33 |
|
| 4 | which had [been] establish | 33 |
|
| 5 | which had [be] established | 32 |
|
