| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be [v-ing] in | 280 |
|
| 2 | [conj] be [v-ing] in | 227 |
|
| 3 | [conj] had be [v-ing] | 209 |
|
| 4 | [conj] had be in | 51 |
|
