| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] [been] at [noun] | 102 |
|
| 2 | they [vb past] [been] [prep] [noun] | 55 |
|
| 3 | they [verb] [been] at [noun] | 13 |
|
| 4 | they [vb past] [be] at [noun] | 7 |
|
