| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [vb infin] be [verb] | 545 |
|
| 2 | it [vb mod] be [verb] on | 199 |
|
| 3 | [vb mod] [vb infin] be [verb] on | 175 |
|
| 4 | it [vb mod] [vb infin] [verb] on | 49 |
|
| 5 | it [vb mod] [vb infin] be on | 19 |
|
