| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been present at | 31 |
|
| 2 | have [been] present at | 31 |
|
| 3 | [vb past] [been] present at | 20 |
|
| 4 | had [been] present at | 20 |
|
| 5 | to have [been] present at | 5 |
|
| 6 | [to-vb] [been] present at | 5 |
|
