| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [modal v] be [prep] | 414 |
|
| 2 | [adv prt] [Wh det] [modal v] be | 30 |
|
| 3 | [adv prt] [modal v] be [prep] | 15 |
|
