| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [prep] be | 15373 |
|
| 2 | [prep] be [v-ing] | 7575 |
|
| 3 | be [prep] [v-ing] | 5741 |
|
| 4 | be be [v-ing] | 9 |
|
