| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] to [be] [v-ing] | 1215 |
|
| 2 | can be [verb] to [be] | 334 |
|
| 3 | can be [verb] to [v-ing] | 15 |
|
| 4 | can [verb] to [be] [v-ing] | 6 |
|
