| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be working [prep] [det] [noun] | 12 |
|
| 2 | be working [prep] [det] [noun sg] | 11 |
|
| 3 | be working on [det] [noun] | 5 |
|
| 4 | be working on [det] [noun] | 5 |
|
