| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been working on [adj] [noun sg] | 14 |
|
| 2 | been work on [det] [noun sg] | 10 |
|
| 3 | been work on this [noun sg] | 7 |
|
| 4 | been work on this [noun sg] | 7 |
|
