| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] have [been] working on [prep] | 15 |
|
| 2 | [pron] have [been] working on [prep] | 15 |
|
| 3 | have [been] working on [prep] [adj] | 8 |
|
| 4 | have [been] working on [prep] [noun] | 5 |
|
| 5 | have [been] working on [prep] [adj] | 5 |
|
