| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] at [noun] | 166 |
|
| 2 | [vb past] [not/n't] [been] [noun] | 56 |
|
| 3 | [vb past] [not/n't] [been] at | 26 |
|
| 4 | [not/n't] [been] at [noun] | 13 |
|
