| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] use for | 38 |
|
| 2 | [been] use for [det] | 37 |
|
| 3 | [vb past] [been] for [det] | 24 |
|
| 4 | [vb past] [been] use [det] | 9 |
|
