| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which had been [prep] [noun sg] | 63 |
|
| 2 | which had been in [noun] | 36 |
|
| 3 | which had been under [noun] | 23 |
|
| 4 | which had been [prep] force | 6 |
|
| 5 | which had been [prep] force | 6 |
|
