| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [prep] a [adj] | 262 |
|
| 2 | have been presented [prep] a | 39 |
|
| 3 | been presented [prep] a [adj] | 26 |
|
| 4 | have been presented [prep] [adj] | 5 |
|
