| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] working [prep] [art] | 444 |
|
| 2 | [conj] [was/were] [prep] [art] | 438 |
|
| 3 | [conj] working [prep] [art] | 309 |
|
| 4 | [conj] [was/were] working [prep] | 25 |
|
