| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it had [been] [adv] | 423 |
|
| 2 | had [been] [adv] [det] | 112 |
|
| 3 | it had [been] [det] | 52 |
|
| 4 | it had [adv] [det] | 15 |
|
