| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] [verb] [prep] [det] | 761 |
|
| 2 | it [vb past] [been] [verb] [prep] | 710 |
|
| 3 | it [vb past] [verb] [prep] [det] | 75 |
|
| 4 | it [vb past] [been] [verb] [det] | 17 |
|
| 5 | it [vb past] [been] [prep] [det] | 15 |
|
