| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been working [prep] this | 19 |
|
| 2 | have [been] working on this | 11 |
|
| 3 | 've [been] working [prep] this | 5 |
|
| 4 | have [been] working in this | 5 |
|
| 5 | has [been] working [prep] this | 5 |
|
