| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [adv] [vb infin] the [noun] | 274 |
|
| 2 | [adv] [vb infin] at the [noun] | 217 |
|
| 3 | must [vb infin] at the [noun] | 63 |
|
| 4 | must [adv] [vb infin] at the | 10 |
|
