| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] to be | 8901 |
|
| 2 | [prep] [v-ing] to | 7003 |
|
| 3 | [prep] [v-ing] be | 1060 |
|
| 4 | [prep] to be | 206 |
|
