| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be [verb] at | 2261 |
|
| 2 | [verb] be working [prep] | 493 |
|
| 3 | [verb] be working [prep] | 493 |
|
| 4 | [verb] be [v-ing] at | 461 |
|
| 5 | [verb] be work at | 45 |
|
| 6 | [verb] be working at | 41 |
|
| 7 | [verb] [be] working at | 41 |
|
