| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] he be working [prep] | 11 |
|
| 2 | [Wh adv] he [was/were] working [prep] | 10 |
|
| 3 | [Wh adv] he was working [prep] | 10 |
|
| 4 | when he [be] working [prep] | 6 |
|
