| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] at [art] | 720 |
|
| 2 | [v-ing] [vb pp] at [art] | 55 |
|
| 3 | [v-ing] been [vb pp] [art] | 45 |
|
| 4 | [v-ing] been [vb pp] at | 33 |
|
| 5 | [v-ing] been at [art] | 7 |
|
