| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] had [been] working [prep] | 5 |
|
| 2 | and had [be] working [prep] | 5 |
|
| 3 | [coord] had been working [prep] | 5 |
|
| 4 | [coord] had be working [prep] | 5 |
|
