| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [adv] [prep] [adj] | 227 |
|
| 2 | have been used [prep] [adj] | 215 |
|
| 3 | have been used [adv] [prep] | 79 |
|
| 4 | been used [adv] [prep] [adj] | 26 |
|
