| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it had [been] [prep] [det] | 6 |
|
| 2 | [subord] it [vb past] been [prep] [det] | 6 |
|
| 3 | [subord] it [vb past] [been] [prep] [det] | 6 |
|
