| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been used [prep] this | 15 |
|
| 2 | been used for this | 7 |
|
| 3 | been used for this | 7 |
|
| 4 | been used in this | 5 |
|
| 5 | been used in this | 5 |
|
