| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [prep] | 79530 |
|
| 2 | [be] [verb] to | 77930 |
|
| 3 | [be] [v-ing] [prep] | 71147 |
|
| 4 | [be] [v-ing] to | 14229 |
|
