| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] [vb pp] at | 1630 |
|
| 2 | [verb] [been] [vb pp] a | 1070 |
|
| 3 | [verb] [vb pp] at a | 245 |
|
| 4 | [been] [vb pp] at a | 124 |
|
| 5 | [verb] [been] at a | 37 |
|
