| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [adv] [be] [verb] | 3239 |
|
| 2 | [pron] [vb mod] only [be] [verb] | 561 |
|
| 3 | it [vb mod] only [be] [verb] | 162 |
|
| 4 | it [modal v] only [be] [verb] | 162 |
|
