| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who had be [v-ing] | 470 |
|
| 2 | had be [v-ing] [det] | 176 |
|
| 3 | who be [v-ing] [det] | 163 |
|
| 4 | who had be [det] | 5 |
|
