| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be [verb] to | 4874 |
|
| 2 | [v-ing] [prep] be [verb] | 3155 |
|
| 3 | [v-ing] [prep] [verb] to | 363 |
|
| 4 | [v-ing] be [verb] to | 170 |
|
| 5 | [v-ing] [prep] be to | 6 |
|
