| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] to be | 15372 |
|
| 2 | [be] [v-ing] to | 14229 |
|
| 3 | [v-ing] to be | 8824 |
|
| 4 | [be] [v-ing] be | 8 |
|
