| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] has been used [prep] a | 14 |
|
| 2 | it has been used [prep] a | 11 |
|
| 3 | it has been used [prep] a | 11 |
|
| 4 | [pers pn] has been used [prep] a | 11 |
|
| 5 | [pron] has been used as a | 10 |
|
