| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [vb pp] [prep] | 4737 |
|
| 2 | [verb] is [vb pp] [prep] | 912 |
|
| 3 | [verb] it [vb pp] [prep] | 436 |
|
| 4 | [verb] it is [vb pp] | 215 |
|
| 5 | [verb] it is [prep] | 189 |
|
