| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] has [be] done on the | 17 |
|
| 2 | [noun sg] has [be] done on the | 17 |
|
| 3 | work has [be] done on the | 12 |
|
| 4 | work has [be] done on the | 12 |
|
| 5 | research has [be] done on the | 5 |
|
| 6 | research has [be] done on the | 5 |
|
| 7 | has [be] done on the [noun] | 20 |
|
| 8 | has [be] done on the [noun sg] | 16 |
|
