| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be used [prep] [noun] | 2969 |
|
| 2 | often used [prep] [noun] | 98 |
|
| 3 | often be [prep] [noun] | 18 |
|
| 4 | often be used [prep] | 13 |
|
