| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [vb mod] be [verb] to [v-ing] | 12 |
|
| 2 | [pers pn] [vb mod] be [vb pp] to [verb] | 11 |
|
| 3 | it [vb mod] be [verb] to [verb] | 5 |
|
