| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [verb] on this | 72 |
|
| 2 | [am/are] [verb] on this | 72 |
|
| 3 | are [verb] on this | 45 |
|
| 4 | [am/are] [v-ing] on this | 37 |
|
| 5 | [am/are] [vb pp] on this | 34 |
|
| 6 | 're [verb] on this | 14 |
|
| 7 | [am/are] work on this | 9 |
|
| 8 | [am/are] working on this | 7 |
|
| 9 | 'm [verb] on this | 5 |
|
| 10 | am [verb] on this | 5 |
|
