| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [noun] | 2040 |
|
| 2 | they must [vb infin] | 1624 |
|
| 3 | they [vb infin] [noun] | 483 |
|
| 4 | they must [noun] | 8 |
|
