| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [vb pp] at | 1920 |
|
| 2 | [vb pp] at [noun pl] | 830 |
|
| 3 | [been] [vb pp] [noun pl] | 296 |
|
| 4 | [been] at [noun pl] | 63 |
|
