| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [be] | 41670 |
|
| 2 | it [vb mod] be | 41669 |
|
| 3 | [pron] [vb mod] is | 28 |
|
| 4 | it [vb mod] [is] | 5 |
|
| 5 | it [modal v] is | 5 |
|
