| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] can [vb infin] be | 14 |
|
| 2 | [Wh pn] can [verb] be | 14 |
|
| 3 | who can [verb] be | 14 |
|
| 4 | [Wh pn] can [verb] is | 9 |
|
