| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] working on | 167 |
|
| 2 | [verb] [been] working on | 167 |
|
| 3 | [verb] been working on | 167 |
|
| 4 | [vb base] [been] working on | 68 |
|
| 5 | [vb past] [been] working on | 53 |
|
| 6 | had [been] working on | 46 |
|
| 7 | have [been] working on | 38 |
|
| 8 | [vb -s] [been] working on | 37 |
|
| 9 | has [been] working on | 34 |
|
| 10 | 've [been] working on | 30 |
|
| 11 | [vb infin] [been] working on | 7 |
|
| 12 | 'd [been] working on | 7 |
|
| 13 | have [been] working on | 7 |
|
