| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [vb pp] [prep] [verb] | 120 |
|
| 2 | [pron] [is] [vb pp] for [verb] | 63 |
|
| 3 | it [be] [vb pp] for [verb] | 57 |
|
| 4 | it [is] [verb] for [verb] | 27 |
|
