| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] it [vb mod] [vb infin] | 2681 |
|
| 2 | [noun] it [modal v] [vb infin] | 2681 |
|
| 3 | [noun] [pron] must [vb infin] | 1748 |
|
| 4 | [noun] it must [verb] | 166 |
|
| 5 | [noun] it must [vb infin] | 166 |
|
