| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [be] work on it for | 6 |
|
| 2 | have be work on it for | 6 |
|
| 3 | have been work on it for | 6 |
|
| 4 | have [been] work on it for | 6 |
|
| 5 | have [be] working on it for | 6 |
|
| 6 | have [be] work on it for | 6 |
|
