| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be used [prep] | 2697 |
|
| 2 | be used [prep] [det] | 878 |
|
| 3 | [modal v] be [prep] [det] | 834 |
|
| 4 | [modal v] be used [det] | 19 |
|
