| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] must [vb infin] [verb] | 2815 |
|
| 2 | what [pers pn] must [vb infin] | 178 |
|
| 3 | what [pers pn] must [verb] | 178 |
|
| 4 | what must [vb infin] [verb] | 17 |
|
