| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] on | 3180 |
|
| 2 | have been [v-ing] on | 530 |
|
| 3 | have been working [prep] | 484 |
|
| 4 | have been working [prep] | 484 |
|
| 5 | have been work on | 170 |
|
| 6 | have be working on | 167 |
|
| 7 | have [been] working on | 167 |
|
| 8 | have [be] working on | 167 |
|
| 9 | have been working on | 167 |
|
| 10 | [verb] been working on | 167 |
|
