| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [be] working on | 84 |
|
| 2 | [noun sg] had [be] on | 60 |
|
| 3 | had [be] working on | 46 |
|
| 4 | [noun sg] had [be] working | 21 |
|
