| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] be [prep] [verb] [to-vb] | 6 |
|
| 2 | [adj] be [prep] [v-ing] [to-vb] | 6 |
|
| 3 | [adj] be [prep] [verb] [to-vb] | 6 |
|
