| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been working on [pron] for | 8 |
|
| 2 | been working [prep] it for | 7 |
|
| 3 | be working on it for | 7 |
|
| 4 | been working [prep] it for | 7 |
|
| 5 | [be] working on it for | 7 |
|
| 6 | been [verb] on it for | 7 |
|
| 7 | been working on it [prep] | 7 |
|
| 8 | been working on it for | 6 |
|
| 9 | been [v-ing] on it for | 6 |
|
| 10 | [been] working on it for | 6 |
|
| 11 | been work on it for | 6 |
|
