| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which means [pers pn] [modal v] [verb] a | 6 |
|
| 2 | [Wh det] means [pers pn] [vb mod] [verb] a | 6 |
|
| 3 | [Wh det] means [pers pn] [modal v] [vb infin] a | 6 |
|
