| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] at the [noun] | 63 |
|
| 2 | must [vb infin] at the [noun] | 63 |
|
| 3 | must [vb infin] at the [noun] | 63 |
|
| 4 | must [vb infin] at the [noun sg] | 52 |
|
| 5 | must look at the [noun] | 25 |
|
| 6 | must [vb infin] at the [noun pl] | 11 |
|
| 7 | must remain at the [noun] | 5 |
|
