| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [verb] [noun] | 2459 |
|
| 2 | [vb past] it [modal v] [verb] | 871 |
|
| 3 | [vb past] it [verb] [noun] | 195 |
|
| 4 | [vb past] [modal v] [verb] [noun] | 37 |
|
