| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be working on | 182 |
|
| 2 | [am/are] working on | 58 |
|
| 3 | [been] working on | 50 |
|
| 4 | been working on | 50 |
|
| 5 | [was/were] working on | 39 |
|
| 6 | was working on | 29 |
|
| 7 | 're working on | 26 |
|
| 8 | are working on | 21 |
|
| 9 | [is] working on | 19 |
|
| 10 | [be] working on | 16 |
|
| 11 | be working on | 16 |
|
| 12 | 'm working on | 10 |
|
| 13 | were working on | 10 |
|
| 14 | is working on | 10 |
|
| 15 | 's working on | 9 |
|
