| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we have been working [prep] [det] | 8 |
|
| 2 | we have been working [prep] [adj] | 6 |
|
| 3 | we have been working on [adj] | 5 |
|
| 4 | we 've been working [prep] [adj] | 5 |
|
