| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] working [prep] for | 5 |
|
| 2 | [verb] been working [prep] for | 5 |
|
| 3 | [verb] [been] working [prep] for | 5 |
|
| 4 | have [been] working [prep] for | 5 |
|
