| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [Wh det] [modal v] be used | 426 |
|
| 2 | [n mass] [noun] [Wh det] [modal v] be | 22 |
|
| 3 | [n mass] [noun] [modal v] be used | 21 |
|
| 4 | [n mass] [Wh det] [modal v] be used | 9 |
|
