| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [verb] to be | 342 |
|
| 2 | [prep] [v-ing] [prep] be | 341 |
|
| 3 | [prep] [v-ing] [prep] be | 340 |
|
| 4 | [prep] [v-ing] to be | 311 |
|
| 5 | [prep] [v-ing] to [be] | 311 |
|
| 6 | [prep] [v-ing] to be | 311 |
|
