| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [pron] must [vb infin] | 869 |
|
| 2 | and [Wh det] [modal v] [vb infin] | 290 |
|
| 3 | [conj] [Wh det] must [vb infin] | 10 |
|
| 4 | and [Wh det] must [verb] | 6 |
|
