| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [adv] [prep] | 311 |
|
| 2 | which had [been] [adv] | 235 |
|
| 3 | which had [been] [prep] | 113 |
|
| 4 | which had [adv] [prep] | 12 |
|
