| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [to] [verb] | 6432 |
|
| 2 | [be] [verb] [to] [vb infin] | 6417 |
|
| 3 | [be] [v-ing] [prep] [vb infin] | 6415 |
|
