| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] be [v-ing] a | 6234 |
|
| 2 | [pron] had be [v-ing] | 3173 |
|
| 3 | [pron] had be a | 1849 |
|
| 4 | had be [v-ing] a | 232 |
|
