| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] on [art] [noun] | 543 |
|
| 2 | [modal v] [be] on [art] [noun] | 543 |
|
| 3 | must [be] [prep] [art] [noun] | 256 |
|
| 4 | must [be] [prep] [art] [noun] | 256 |
|
| 5 | must [be] on [art] [noun] | 41 |
|
| 6 | must [be] on [art] [noun] | 41 |
|
| 7 | must [be] on [art] [noun] | 41 |
|
| 8 | must [be] on [art] [noun] | 41 |
|
