| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [noun pl] [modal v] [vb infin] at | 9 |
|
| 2 | [Wh det] [noun pl] [vb mod] [verb] at | 9 |
|
| 3 | which [noun pl] [modal v] [verb] at | 6 |
|
