| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [prep] [art] | 1429 |
|
| 2 | [vb infin] [prep] [art] [num ord] | 1051 |
|
| 3 | must [vb infin] [art] [num ord] | 33 |
|
| 4 | must [prep] [art] [num ord] | 11 |
|
| 5 | must [vb infin] [prep] [num ord] | 7 |
|
