| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [verb] [prep] | 18820 |
|
| 2 | [vb past] be [v-ing] [prep] | 2310 |
|
| 3 | [verb] be working [prep] | 493 |
|
| 4 | [vb past] be work [prep] | 187 |
|
| 5 | [vb past] be working [prep] | 180 |
|
| 6 | [vb past] [be] working [prep] | 180 |
|
