| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [v-ing] on at the | 10 |
|
| 2 | 're [verb] on at the | 8 |
|
| 3 | [am/are] work on at the | 7 |
|
| 4 | [am/are] working on at the | 7 |
|
