| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [adv] [been] used | 283 |
|
| 2 | have [been] used for | 195 |
|
| 3 | [adv] [been] used for | 32 |
|
| 4 | have [adv] [been] for | 32 |
|
