| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [prep] [art] [noun] | 981 |
|
| 2 | [vb infin] so [prep] [art] [noun] | 90 |
|
| 3 | must [vb infin] so [prep] [art] | 13 |
|
| 4 | must [vb infin] so [prep] [noun] | 5 |
|
