| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [vb pp] [adv] | 542 |
|
| 2 | must [vb infin] [vb pp] [noun] | 262 |
|
| 3 | [vb infin] [vb pp] [adv] [noun] | 138 |
|
| 4 | must [vb infin] [adv] [noun] | 59 |
|
