| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have be [v-ing] on the | 24 |
|
| 2 | who have been [v-ing] on the | 24 |
|
| 3 | who have [been] [v-ing] on the | 24 |
|
| 4 | who have [be] [v-ing] on the | 24 |
|
| 5 | who had [be] [v-ing] on the | 11 |
|
| 6 | who has [be] [v-ing] on the | 8 |
|
| 7 | who have [be] working on the | 7 |
|
