| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] has been [verb] on | 628 |
|
| 2 | [noun] has been working [prep] | 54 |
|
| 3 | [noun] [verb] been working on | 52 |
|
| 4 | [noun] have been working on | 52 |
|
| 5 | [noun] has been [v-ing] on | 41 |
|
| 6 | [noun] [vb -s] been working on | 18 |
|
| 7 | [noun] has been work on | 17 |
|
| 8 | [noun] has [be] working on | 17 |
|
| 9 | [noun] has [been] working on | 17 |
|
| 10 | [noun] has be working on | 17 |
|
