| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] [verb] at the | 273 |
|
| 2 | [vb past] [be] [v-ing] at the | 51 |
|
| 3 | [vb past] [be] working [prep] the | 49 |
|
| 4 | [vb past] [be] working [prep] the | 49 |
|
| 5 | [verb] [be] working at the | 13 |
|
| 6 | [vb past] [be] working at [art] | 6 |
|
| 7 | [vb past] [be] working at [art] | 6 |
|
| 8 | [vb past] [be] working at the | 5 |
|
| 9 | [vb past] [be] work at the | 5 |
|
| 10 | [vb past] [be] working at the | 5 |
|
