| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [v-ing] to | 603 |
|
| 2 | [vb mod] be [v-ing] [be] | 50 |
|
| 3 | [vb mod] be to [be] | 24 |
|
| 4 | be [v-ing] to [be] | 23 |
|
