| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been used for [det] | 27 |
|
| 2 | have been use for many | 14 |
|
| 3 | has been use for [det] | 11 |
|
| 4 | had been use for [det] | 6 |
|
| 5 | have been use for this | 6 |
|
| 6 | have been use for [det] | 5 |
|
