| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [Wh adv] it must [vb infin] | 6 |
|
| 2 | [Wh adv] [adj] it must [vb infin] | 8 |
|
| 3 | [Wh adv] [adj] it must [vb infin] | 8 |
|
| 4 | [Wh adv] it must [vb infin] [verb] | 7 |
|
| 5 | [Wh adv] it must [vb infin] [vb pp] | 6 |
|
