| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] on | 91 |
|
| 2 | [vb -s] been working on | 37 |
|
| 3 | 's been [v-ing] on | 29 |
|
| 4 | [vb -s] been going on | 15 |
|
| 5 | [vb -s] been living on | 7 |
|
| 6 | [vb -s] been sitting on | 7 |
|
| 7 | [vb -s] been concentrating on | 5 |
|
