| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] used [prep] | 217 |
|
| 2 | also [been] used [prep] | 28 |
|
| 3 | have also [been] used | 24 |
|
| 4 | have also [been] [prep] | 20 |
|
