| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] to [noun prp] [prep] | 177 |
|
| 2 | [modal v] be [v-ing] to [noun prp] | 100 |
|
| 3 | [modal v] be [v-ing] [noun prp] [prep] | 37 |
|
| 4 | [modal v] be [v-ing] to [prep] | 10 |
|
