| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been used for | 53 |
|
| 2 | [pers pn] have been for | 29 |
|
| 3 | [pers pn] have been used | 29 |
|
| 4 | [pers pn] have used for | 7 |
|
