| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be [v-ing] in | 843 |
|
| 2 | what be [v-ing] in | 316 |
|
| 3 | what [verb] be [v-ing] | 199 |
|
| 4 | what [verb] be in | 13 |
|
