| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [be] [verb] | 12234 |
|
| 2 | [modal v] [be] [verb] at | 4042 |
|
| 3 | it [be] [verb] at | 686 |
|
| 4 | it [modal v] [verb] at | 206 |
|
| 5 | it [modal v] [be] at | 116 |
|
