| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [been] [vb pp] at | 156 |
|
| 2 | [been] [vb pp] at a | 124 |
|
| 3 | [vb infin] [been] [vb pp] a | 85 |
|
| 4 | [vb infin] [vb pp] at a | 56 |
|
| 5 | [vb infin] [been] at a | 8 |
|
