| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] we [modal v] [vb infin] | 1834 |
|
| 2 | [Wh det] [pron] must [vb infin] | 393 |
|
| 3 | [pron] we must [vb infin] | 105 |
|
| 4 | [Wh det] we must [verb] | 66 |
|
