| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be [v-ing] | 21170 |
|
| 2 | be [v-ing] to | 14228 |
|
| 3 | [verb] [v-ing] to | 3790 |
|
| 4 | [verb] be to | 1307 |
|
