| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be [prep] [art] | 3204 |
|
| 2 | be used [prep] [art] | 1764 |
|
| 3 | [prep] be used [prep] | 1046 |
|
| 4 | [prep] be used [art] | 7 |
|
