| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be [verb] on [det] [noun] | 148 |
|
| 2 | [verb] be [v-ing] on [det] [noun] | 27 |
|
| 3 | [verb] be working on [adj] [noun] | 27 |
|
| 4 | [verb] be working [prep] [det] [noun] | 25 |
|
| 5 | [verb] [be] working on [det] [noun] | 15 |
|
| 6 | [verb] be work on [det] [noun] | 15 |
|
