| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [art] [noun sg] | 2535 |
|
| 2 | [vb infin] at [art] [noun sg] | 1658 |
|
| 3 | must [vb infin] at [art] | 93 |
|
| 4 | must [vb infin] at [noun sg] | 16 |
|
| 5 | must at [art] [noun sg] | 5 |
|
