| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] be [v-ing] [prep] | 4816 |
|
| 2 | had be [v-ing] [prep] | 1920 |
|
| 3 | [noun prp] had be [v-ing] | 877 |
|
| 4 | [noun prp] had be [prep] | 431 |
|
