| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [prep] [det] [noun] | 83 |
|
| 2 | has [been] used [prep] [noun] | 77 |
|
| 3 | [been] used [prep] [det] [noun] | 67 |
|
| 4 | has [been] used [prep] [det] | 36 |
|
