| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who had be [verb] | 1786 |
|
| 2 | who had be [v-ing] | 470 |
|
| 3 | [pron] had be working | 133 |
|
| 4 | who have be working | 39 |
|
| 5 | who [verb] be working | 39 |
|
| 6 | who [vb past] be working | 19 |
|
| 7 | who had be working | 16 |
|
| 8 | who had be work | 16 |
|
| 9 | who had [be] working | 16 |
|
| 10 | [Wh pn] had be working | 16 |
|
