| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] on at | 152 |
|
| 2 | [be] [v-ing] on at | 102 |
|
| 3 | [be] going on at | 77 |
|
| 4 | [be] go on at | 77 |
|
| 5 | [be] [vb pp] on at | 49 |
|
| 6 | [is] [verb] on at | 48 |
|
| 7 | [was/were] [verb] on at | 46 |
|
| 8 | was [verb] on at | 37 |
|
| 9 | 's [verb] on at | 25 |
|
| 10 | is [verb] on at | 23 |
|
| 11 | be [verb] on at | 21 |
|
| 12 | [be] [verb] on at | 21 |
|
| 13 | been [verb] on at | 18 |
|
| 14 | [been] [verb] on at | 18 |
|
| 15 | [am/are] [verb] on at | 15 |
|
| 16 | [be] work on at | 14 |
|
| 17 | [be] working on at | 10 |
|
| 18 | 're [verb] on at | 9 |
|
| 19 | were [verb] on at | 9 |
|
| 20 | [be] carry on at | 7 |
|
| 21 | [be] switched on at | 7 |
|
| 22 | [be] switch on at | 7 |
|
| 23 | [be] carried on at | 6 |
|
| 24 | [be] put on at | 5 |
|
| 25 | [be] put on at | 5 |
|
| 26 | are [verb] on at | 5 |
|
