| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] on at the | 51 |
|
| 2 | [be] [v-ing] on at the | 51 |
|
| 3 | be [v-ing] on at the | 51 |
|
| 4 | [be] going on at the | 38 |
|
| 5 | [is] [v-ing] on at the | 25 |
|
| 6 | 's [v-ing] on at the | 15 |
|
| 7 | [was/were] [v-ing] on at the | 12 |
|
| 8 | [am/are] [v-ing] on at the | 10 |
|
| 9 | was [v-ing] on at the | 10 |
|
| 10 | [be] working on at the | 10 |
|
| 11 | is [v-ing] on at the | 10 |
|
| 12 | 're [v-ing] on at the | 8 |
|
