| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [modal v] to be [vb pp] | 137 |
|
| 2 | to [Wh det] [modal v] be [vb pp] | 106 |
|
| 3 | to [Wh det] [modal v] to be | 10 |
|
