| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been working on [prep] | 19 |
|
| 2 | have been working on for | 10 |
|
| 3 | have been working on for | 10 |
|
| 4 | have been working on with | 7 |
|
| 5 | have been working on with | 7 |
|
| 6 | has been working on [prep] | 6 |
|
| 7 | had been working on [prep] | 6 |
|
| 8 | 've been working on [prep] | 5 |
|
