| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] had [been] working for | 15 |
|
| 2 | [pron] had been working for | 15 |
|
| 3 | he had [been] working for | 6 |
|
| 4 | he had [been] working for | 6 |
|
