| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] used in | 222 |
|
| 2 | have [been] in [det] | 195 |
|
| 3 | [been] used in [det] | 30 |
|
| 4 | have [been] used [det] | 7 |
|
