| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] use for | 63 |
|
| 2 | has [been] for [det] | 38 |
|
| 3 | [been] use for [det] | 37 |
|
| 4 | has [been] use [det] | 7 |
|
