| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [indef pn] must [verb] | 688 |
|
| 2 | [indef pn] must [vb infin] | 688 |
|
| 3 | [pron] must do | 454 |
|
| 4 | [indef pn] [modal v] do | 283 |
|
| 5 | [indef pn] must do | 6 |
|
